Home / 1,587.15-2,378.38-1,414.15

Finding the Fourth Proportional to 1,587.15, 2,378.38 and 1,414.15

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Solution

The fourth proportional to 1,587.15, 2,378.38 and 1,414.15 is: 2,119.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.15 : 2,378.38 = 1,414.15 : x
  2. Step 2: Convert to fraction form
    1,587.15/2,378.38 = 1,414.15/x
  3. Step 3: Cross multiply
    1,587.15x = 2,378.38 × 1,414.15
  4. Step 4: Simplify right side
    1,587.15x = 3,363,386.08
  5. Step 5: Solve for x
    x = 3,363,386.08/1,587.15
  6. Step 6: Final answer
    x = 2,119.14

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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.