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Finding the Fourth Proportional to 1,800.25, 2,484.35 and 972.25

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Solution

The fourth proportional to 1,800.25, 2,484.35 and 972.25 is: 1,341.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,800.25 : 2,484.35 = 972.25 : x
  2. Step 2: Convert to fraction form
    1,800.25/2,484.35 = 972.25/x
  3. Step 3: Cross multiply
    1,800.25x = 2,484.35 × 972.25
  4. Step 4: Simplify right side
    1,800.25x = 2,415,404.43
  5. Step 5: Solve for x
    x = 2,415,404.43/1,800.25
  6. Step 6: Final answer
    x = 1,341.71

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.