Home / 2,615.50-3,937.53-2,385.86

Finding the Fourth Proportional to 2,615.50, 3,937.53 and 2,385.86

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Solution

The fourth proportional to 2,615.50, 3,937.53 and 2,385.86 is: 3,591.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.50 : 3,937.53 = 2,385.86 : x
  2. Step 2: Convert to fraction form
    2,615.50/3,937.53 = 2,385.86/x
  3. Step 3: Cross multiply
    2,615.50x = 3,937.53 × 2,385.86
  4. Step 4: Simplify right side
    2,615.50x = 9,394,395.33
  5. Step 5: Solve for x
    x = 9,394,395.33/2,615.50
  6. Step 6: Final answer
    x = 3,591.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.