Home / 2,518.85-3,778.08-1,591.71

Finding the Fourth Proportional to 2,518.85, 3,778.08 and 1,591.71

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Solution

The fourth proportional to 2,518.85, 3,778.08 and 1,591.71 is: 2,387.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518.85 : 3,778.08 = 1,591.71 : x
  2. Step 2: Convert to fraction form
    2,518.85/3,778.08 = 1,591.71/x
  3. Step 3: Cross multiply
    2,518.85x = 3,778.08 × 1,591.71
  4. Step 4: Simplify right side
    2,518.85x = 6,013,587.58
  5. Step 5: Solve for x
    x = 6,013,587.58/2,518.85
  6. Step 6: Final answer
    x = 2,387.43

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1.5x scale

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.