Home / 3,937.60-5,433.84-2,445.44

Finding the Fourth Proportional to 3,937.60, 5,433.84 and 2,445.44

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Solution

The fourth proportional to 3,937.60, 5,433.84 and 2,445.44 is: 3,374.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.60 : 5,433.84 = 2,445.44 : x
  2. Step 2: Convert to fraction form
    3,937.60/5,433.84 = 2,445.44/x
  3. Step 3: Cross multiply
    3,937.60x = 5,433.84 × 2,445.44
  4. Step 4: Simplify right side
    3,937.60x = 13,288,129.69
  5. Step 5: Solve for x
    x = 13,288,129.69/3,937.60
  6. Step 6: Final answer
    x = 3,374.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.