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Finding the Fourth Proportional to 7,785.52, 10,743.81 and 4,248.73

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Solution

The fourth proportional to 7,785.52, 10,743.81 and 4,248.73 is: 5,863.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.52 : 10,743.81 = 4,248.73 : x
  2. Step 2: Convert to fraction form
    7,785.52/10,743.81 = 4,248.73/x
  3. Step 3: Cross multiply
    7,785.52x = 10,743.81 × 4,248.73
  4. Step 4: Simplify right side
    7,785.52x = 45,647,547.86
  5. Step 5: Solve for x
    x = 45,647,547.86/7,785.52
  6. Step 6: Final answer
    x = 5,863.13

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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.