Home / 7,748.20-11,622.10-3,070.64

Finding the Fourth Proportional to 7,748.20, 11,622.10 and 3,070.64

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Solution

The fourth proportional to 7,748.20, 11,622.10 and 3,070.64 is: 4,605.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,748.20 : 11,622.10 = 3,070.64 : x
  2. Step 2: Convert to fraction form
    7,748.20/11,622.10 = 3,070.64/x
  3. Step 3: Cross multiply
    7,748.20x = 11,622.10 × 3,070.64
  4. Step 4: Simplify right side
    7,748.20x = 35,687,285.14
  5. Step 5: Solve for x
    x = 35,687,285.14/7,748.20
  6. Step 6: Final answer
    x = 4,605.88

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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.