Home / 7,101.18-10,655.10-3,640.86

Finding the Fourth Proportional to 7,101.18, 10,655.10 and 3,640.86

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Solution

The fourth proportional to 7,101.18, 10,655.10 and 3,640.86 is: 5,463.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,101.18 : 10,655.10 = 3,640.86 : x
  2. Step 2: Convert to fraction form
    7,101.18/10,655.10 = 3,640.86/x
  3. Step 3: Cross multiply
    7,101.18x = 10,655.10 × 3,640.86
  4. Step 4: Simplify right side
    7,101.18x = 38,793,727.39
  5. Step 5: Solve for x
    x = 38,793,727.39/7,101.18
  6. Step 6: Final answer
    x = 5,463.00

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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.