Home / 3,124.20-4,685.40-2,575.02

Finding the Fourth Proportional to 3,124.20, 4,685.40 and 2,575.02

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Solution

The fourth proportional to 3,124.20, 4,685.40 and 2,575.02 is: 3,861.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.20 : 4,685.40 = 2,575.02 : x
  2. Step 2: Convert to fraction form
    3,124.20/4,685.40 = 2,575.02/x
  3. Step 3: Cross multiply
    3,124.20x = 4,685.40 × 2,575.02
  4. Step 4: Simplify right side
    3,124.20x = 12,064,998.71
  5. Step 5: Solve for x
    x = 12,064,998.71/3,124.20
  6. Step 6: Final answer
    x = 3,861.79

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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.