Home / 6,129.57-8,458.70-3,440.85

Finding the Fourth Proportional to 6,129.57, 8,458.70 and 3,440.85

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Solution

The fourth proportional to 6,129.57, 8,458.70 and 3,440.85 is: 4,748.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,129.57 : 8,458.70 = 3,440.85 : x
  2. Step 2: Convert to fraction form
    6,129.57/8,458.70 = 3,440.85/x
  3. Step 3: Cross multiply
    6,129.57x = 8,458.70 × 3,440.85
  4. Step 4: Simplify right side
    6,129.57x = 29,105,068.97
  5. Step 5: Solve for x
    x = 29,105,068.97/6,129.57
  6. Step 6: Final answer
    x = 4,748.30

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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.