Home / 6,440.11-9,658.60-1,760.14

Finding the Fourth Proportional to 6,440.11, 9,658.60 and 1,760.14

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Solution

The fourth proportional to 6,440.11, 9,658.60 and 1,760.14 is: 2,639.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.11 : 9,658.60 = 1,760.14 : x
  2. Step 2: Convert to fraction form
    6,440.11/9,658.60 = 1,760.14/x
  3. Step 3: Cross multiply
    6,440.11x = 9,658.60 × 1,760.14
  4. Step 4: Simplify right side
    6,440.11x = 17,000,488.20
  5. Step 5: Solve for x
    x = 17,000,488.20/6,440.11
  6. Step 6: Final answer
    x = 2,639.78

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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.