Home / 5,487.60-7,575.72-3,811.92

Finding the Fourth Proportional to 5,487.60, 7,575.72 and 3,811.92

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Solution

The fourth proportional to 5,487.60, 7,575.72 and 3,811.92 is: 5,262.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.60 : 7,575.72 = 3,811.92 : x
  2. Step 2: Convert to fraction form
    5,487.60/7,575.72 = 3,811.92/x
  3. Step 3: Cross multiply
    5,487.60x = 7,575.72 × 3,811.92
  4. Step 4: Simplify right side
    5,487.60x = 28,878,038.58
  5. Step 5: Solve for x
    x = 28,878,038.58/5,487.60
  6. Step 6: Final answer
    x = 5,262.42

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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.