Home / 4,753.76-7,129.84-1,290.24

Finding the Fourth Proportional to 4,753.76, 7,129.84 and 1,290.24

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Solution

The fourth proportional to 4,753.76, 7,129.84 and 1,290.24 is: 1,935.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,753.76 : 7,129.84 = 1,290.24 : x
  2. Step 2: Convert to fraction form
    4,753.76/7,129.84 = 1,290.24/x
  3. Step 3: Cross multiply
    4,753.76x = 7,129.84 × 1,290.24
  4. Step 4: Simplify right side
    4,753.76x = 9,199,204.76
  5. Step 5: Solve for x
    x = 9,199,204.76/4,753.76
  6. Step 6: Final answer
    x = 1,935.14

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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.