Home / 1,475.87-2,037.44-1,143.55

Finding the Fourth Proportional to 1,475.87, 2,037.44 and 1,143.55

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Solution

The fourth proportional to 1,475.87, 2,037.44 and 1,143.55 is: 1,578.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.87 : 2,037.44 = 1,143.55 : x
  2. Step 2: Convert to fraction form
    1,475.87/2,037.44 = 1,143.55/x
  3. Step 3: Cross multiply
    1,475.87x = 2,037.44 × 1,143.55
  4. Step 4: Simplify right side
    1,475.87x = 2,329,898.61
  5. Step 5: Solve for x
    x = 2,329,898.61/1,475.87
  6. Step 6: Final answer
    x = 1,578.66

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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.