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Finding the Fourth Proportional to 7,641.59, 11,461.37 and 3,477.11

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Solution

The fourth proportional to 7,641.59, 11,461.37 and 3,477.11 is: 5,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,641.59 : 11,461.37 = 3,477.11 : x
  2. Step 2: Convert to fraction form
    7,641.59/11,461.37 = 3,477.11/x
  3. Step 3: Cross multiply
    7,641.59x = 11,461.37 × 3,477.11
  4. Step 4: Simplify right side
    7,641.59x = 39,852,369.55
  5. Step 5: Solve for x
    x = 39,852,369.55/7,641.59
  6. Step 6: Final answer
    x = 5,215.20

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.