Home / 5,399.40-7,448.62-3,159.89

Finding the Fourth Proportional to 5,399.40, 7,448.62 and 3,159.89

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Solution

The fourth proportional to 5,399.40, 7,448.62 and 3,159.89 is: 4,359.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.40 : 7,448.62 = 3,159.89 : x
  2. Step 2: Convert to fraction form
    5,399.40/7,448.62 = 3,159.89/x
  3. Step 3: Cross multiply
    5,399.40x = 7,448.62 × 3,159.89
  4. Step 4: Simplify right side
    5,399.40x = 23,536,774.71
  5. Step 5: Solve for x
    x = 23,536,774.71/5,399.40
  6. Step 6: Final answer
    x = 4,359.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.