Home / 6,104.32-8,421.90-3,715.12

Finding the Fourth Proportional to 6,104.32, 8,421.90 and 3,715.12

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Solution

The fourth proportional to 6,104.32, 8,421.90 and 3,715.12 is: 5,125.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,104.32 : 8,421.90 = 3,715.12 : x
  2. Step 2: Convert to fraction form
    6,104.32/8,421.90 = 3,715.12/x
  3. Step 3: Cross multiply
    6,104.32x = 8,421.90 × 3,715.12
  4. Step 4: Simplify right side
    6,104.32x = 31,288,369.13
  5. Step 5: Solve for x
    x = 31,288,369.13/6,104.32
  6. Step 6: Final answer
    x = 5,125.61

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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.