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Finding the Fourth Proportional to 4,691.72, 7,035.86 and 1,403.71

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Solution

The fourth proportional to 4,691.72, 7,035.86 and 1,403.71 is: 2,105.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,691.72 : 7,035.86 = 1,403.71 : x
  2. Step 2: Convert to fraction form
    4,691.72/7,035.86 = 1,403.71/x
  3. Step 3: Cross multiply
    4,691.72x = 7,035.86 × 1,403.71
  4. Step 4: Simplify right side
    4,691.72x = 9,876,292.96
  5. Step 5: Solve for x
    x = 9,876,292.96/4,691.72
  6. Step 6: Final answer
    x = 2,105.05

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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.