Home / 7,379.12-11,069.88-3,681.46

Finding the Fourth Proportional to 7,379.12, 11,069.88 and 3,681.46

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Solution

The fourth proportional to 7,379.12, 11,069.88 and 3,681.46 is: 5,522.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.12 : 11,069.88 = 3,681.46 : x
  2. Step 2: Convert to fraction form
    7,379.12/11,069.88 = 3,681.46/x
  3. Step 3: Cross multiply
    7,379.12x = 11,069.88 × 3,681.46
  4. Step 4: Simplify right side
    7,379.12x = 40,753,320.42
  5. Step 5: Solve for x
    x = 40,753,320.42/7,379.12
  6. Step 6: Final answer
    x = 5,522.79

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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.