Home / 4,753.64-7,129.92-1,290.64

Finding the Fourth Proportional to 4,753.64, 7,129.92 and 1,290.64

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Solution

The fourth proportional to 4,753.64, 7,129.92 and 1,290.64 is: 1,935.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,753.64 : 7,129.92 = 1,290.64 : x
  2. Step 2: Convert to fraction form
    4,753.64/7,129.92 = 1,290.64/x
  3. Step 3: Cross multiply
    4,753.64x = 7,129.92 × 1,290.64
  4. Step 4: Simplify right side
    4,753.64x = 9,202,159.95
  5. Step 5: Solve for x
    x = 9,202,159.95/4,753.64
  6. Step 6: Final answer
    x = 1,935.81

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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.