Home / 5,126.97-7,690.52-1,429.11

Finding the Fourth Proportional to 5,126.97, 7,690.52 and 1,429.11

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Solution

The fourth proportional to 5,126.97, 7,690.52 and 1,429.11 is: 2,143.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.97 : 7,690.52 = 1,429.11 : x
  2. Step 2: Convert to fraction form
    5,126.97/7,690.52 = 1,429.11/x
  3. Step 3: Cross multiply
    5,126.97x = 7,690.52 × 1,429.11
  4. Step 4: Simplify right side
    5,126.97x = 10,990,599.04
  5. Step 5: Solve for x
    x = 10,990,599.04/5,126.97
  6. Step 6: Final answer
    x = 2,143.68

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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.