Home / 8,125.41-12,188.12-2,931.29

Finding the Fourth Proportional to 8,125.41, 12,188.12 and 2,931.29

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Solution

The fourth proportional to 8,125.41, 12,188.12 and 2,931.29 is: 4,396.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.41 : 12,188.12 = 2,931.29 : x
  2. Step 2: Convert to fraction form
    8,125.41/12,188.12 = 2,931.29/x
  3. Step 3: Cross multiply
    8,125.41x = 12,188.12 × 2,931.29
  4. Step 4: Simplify right side
    8,125.41x = 35,726,914.27
  5. Step 5: Solve for x
    x = 35,726,914.27/8,125.41
  6. Step 6: Final answer
    x = 4,396.94

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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.