Home / 1,585.31-2,377.96-1,238.12

Finding the Fourth Proportional to 1,585.31, 2,377.96 and 1,238.12

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Solution

The fourth proportional to 1,585.31, 2,377.96 and 1,238.12 is: 1,857.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585.31 : 2,377.96 = 1,238.12 : x
  2. Step 2: Convert to fraction form
    1,585.31/2,377.96 = 1,238.12/x
  3. Step 3: Cross multiply
    1,585.31x = 2,377.96 × 1,238.12
  4. Step 4: Simplify right side
    1,585.31x = 2,944,193.77
  5. Step 5: Solve for x
    x = 2,944,193.77/1,585.31
  6. Step 6: Final answer
    x = 1,857.18

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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.