Home / 1,585.86-2,373.90-1,240.20

Finding the Fourth Proportional to 1,585.86, 2,373.90 and 1,240.20

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Solution

The fourth proportional to 1,585.86, 2,373.90 and 1,240.20 is: 1,856.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585.86 : 2,373.90 = 1,240.20 : x
  2. Step 2: Convert to fraction form
    1,585.86/2,373.90 = 1,240.20/x
  3. Step 3: Cross multiply
    1,585.86x = 2,373.90 × 1,240.20
  4. Step 4: Simplify right side
    1,585.86x = 2,944,110.78
  5. Step 5: Solve for x
    x = 2,944,110.78/1,585.86
  6. Step 6: Final answer
    x = 1,856.48

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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.