Home / 6,642.20-9,964.61-1,962.29

Finding the Fourth Proportional to 6,642.20, 9,964.61 and 1,962.29

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Solution

The fourth proportional to 6,642.20, 9,964.61 and 1,962.29 is: 2,943.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642.20 : 9,964.61 = 1,962.29 : x
  2. Step 2: Convert to fraction form
    6,642.20/9,964.61 = 1,962.29/x
  3. Step 3: Cross multiply
    6,642.20x = 9,964.61 × 1,962.29
  4. Step 4: Simplify right side
    6,642.20x = 19,553,454.56
  5. Step 5: Solve for x
    x = 19,553,454.56/6,642.20
  6. Step 6: Final answer
    x = 2,943.82

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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.