Home / 7,439.18-11,157.14-3,488

Finding the Fourth Proportional to 7,439.18, 11,157.14 and 3,488

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Solution

The fourth proportional to 7,439.18, 11,157.14 and 3,488 is: 5,231.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439.18 : 11,157.14 = 3,488 : x
  2. Step 2: Convert to fraction form
    7,439.18/11,157.14 = 3,488/x
  3. Step 3: Cross multiply
    7,439.18x = 11,157.14 × 3,488
  4. Step 4: Simplify right side
    7,439.18x = 38,916,104.32
  5. Step 5: Solve for x
    x = 38,916,104.32/7,439.18
  6. Step 6: Final answer
    x = 5,231.24

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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.