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Finding the Fourth Proportional to 1,594.76, 2,197.48 and 1,221.72

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Solution

The fourth proportional to 1,594.76, 2,197.48 and 1,221.72 is: 1,683.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,594.76 : 2,197.48 = 1,221.72 : x
  2. Step 2: Convert to fraction form
    1,594.76/2,197.48 = 1,221.72/x
  3. Step 3: Cross multiply
    1,594.76x = 2,197.48 × 1,221.72
  4. Step 4: Simplify right side
    1,594.76x = 2,684,705.27
  5. Step 5: Solve for x
    x = 2,684,705.27/1,594.76
  6. Step 6: Final answer
    x = 1,683.45

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,595.76, 2,198.86 and 1,222.72
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.