Home / 1,385.42-2,073.84-1,036.70

Finding the Fourth Proportional to 1,385.42, 2,073.84 and 1,036.70

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Solution

The fourth proportional to 1,385.42, 2,073.84 and 1,036.70 is: 1,551.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385.42 : 2,073.84 = 1,036.70 : x
  2. Step 2: Convert to fraction form
    1,385.42/2,073.84 = 1,036.70/x
  3. Step 3: Cross multiply
    1,385.42x = 2,073.84 × 1,036.70
  4. Step 4: Simplify right side
    1,385.42x = 2,149,949.93
  5. Step 5: Solve for x
    x = 2,149,949.93/1,385.42
  6. Step 6: Final answer
    x = 1,551.84

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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.