Home / 6,488.03-9,731.13-2,105.52

Finding the Fourth Proportional to 6,488.03, 9,731.13 and 2,105.52

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Solution

The fourth proportional to 6,488.03, 9,731.13 and 2,105.52 is: 3,157.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,488.03 : 9,731.13 = 2,105.52 : x
  2. Step 2: Convert to fraction form
    6,488.03/9,731.13 = 2,105.52/x
  3. Step 3: Cross multiply
    6,488.03x = 9,731.13 × 2,105.52
  4. Step 4: Simplify right side
    6,488.03x = 20,489,088.84
  5. Step 5: Solve for x
    x = 20,489,088.84/6,488.03
  6. Step 6: Final answer
    x = 3,157.98

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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.