Home / 6,456.12-9,685.08-2,074.02

Finding the Fourth Proportional to 6,456.12, 9,685.08 and 2,074.02

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Solution

The fourth proportional to 6,456.12, 9,685.08 and 2,074.02 is: 3,111.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,456.12 : 9,685.08 = 2,074.02 : x
  2. Step 2: Convert to fraction form
    6,456.12/9,685.08 = 2,074.02/x
  3. Step 3: Cross multiply
    6,456.12x = 9,685.08 × 2,074.02
  4. Step 4: Simplify right side
    6,456.12x = 20,087,049.62
  5. Step 5: Solve for x
    x = 20,087,049.62/6,456.12
  6. Step 6: Final answer
    x = 3,111.32

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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.