Home / 3,893.20-5,372.58-2,400.52

Finding the Fourth Proportional to 3,893.20, 5,372.58 and 2,400.52

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Solution

The fourth proportional to 3,893.20, 5,372.58 and 2,400.52 is: 3,312.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.20 : 5,372.58 = 2,400.52 : x
  2. Step 2: Convert to fraction form
    3,893.20/5,372.58 = 2,400.52/x
  3. Step 3: Cross multiply
    3,893.20x = 5,372.58 × 2,400.52
  4. Step 4: Simplify right side
    3,893.20x = 12,896,985.74
  5. Step 5: Solve for x
    x = 12,896,985.74/3,893.20
  6. Step 6: Final answer
    x = 3,312.70

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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.