Home / 5,712.72-8,570.40-2,425.92

Finding the Fourth Proportional to 5,712.72, 8,570.40 and 2,425.92

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Solution

The fourth proportional to 5,712.72, 8,570.40 and 2,425.92 is: 3,639.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712.72 : 8,570.40 = 2,425.92 : x
  2. Step 2: Convert to fraction form
    5,712.72/8,570.40 = 2,425.92/x
  3. Step 3: Cross multiply
    5,712.72x = 8,570.40 × 2,425.92
  4. Step 4: Simplify right side
    5,712.72x = 20,791,104.77
  5. Step 5: Solve for x
    x = 20,791,104.77/5,712.72
  6. Step 6: Final answer
    x = 3,639.44

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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.