Home / 3,126.43-4,314.29-1,709.83

Finding the Fourth Proportional to 3,126.43, 4,314.29 and 1,709.83

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Solution

The fourth proportional to 3,126.43, 4,314.29 and 1,709.83 is: 2,359.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.43 : 4,314.29 = 1,709.83 : x
  2. Step 2: Convert to fraction form
    3,126.43/4,314.29 = 1,709.83/x
  3. Step 3: Cross multiply
    3,126.43x = 4,314.29 × 1,709.83
  4. Step 4: Simplify right side
    3,126.43x = 7,376,706.75
  5. Step 5: Solve for x
    x = 7,376,706.75/3,126.43
  6. Step 6: Final answer
    x = 2,359.47

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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.