Home / 7,785.49-10,743.98-4,248.70

Finding the Fourth Proportional to 7,785.49, 10,743.98 and 4,248.70

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Solution

The fourth proportional to 7,785.49, 10,743.98 and 4,248.70 is: 5,863.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.49 : 10,743.98 = 4,248.70 : x
  2. Step 2: Convert to fraction form
    7,785.49/10,743.98 = 4,248.70/x
  3. Step 3: Cross multiply
    7,785.49x = 10,743.98 × 4,248.70
  4. Step 4: Simplify right side
    7,785.49x = 45,647,978.08
  5. Step 5: Solve for x
    x = 45,647,978.08/7,785.49
  6. Step 6: Final answer
    x = 5,863.21

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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.