Home / 7,439.12-11,158.81-3,488.21

Finding the Fourth Proportional to 7,439.12, 11,158.81 and 3,488.21

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Solution

The fourth proportional to 7,439.12, 11,158.81 and 3,488.21 is: 5,232.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439.12 : 11,158.81 = 3,488.21 : x
  2. Step 2: Convert to fraction form
    7,439.12/11,158.81 = 3,488.21/x
  3. Step 3: Cross multiply
    7,439.12x = 11,158.81 × 3,488.21
  4. Step 4: Simplify right side
    7,439.12x = 38,924,249.96
  5. Step 5: Solve for x
    x = 38,924,249.96/7,439.12
  6. Step 6: Final answer
    x = 5,232.37

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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.