Home / 7,159.28-10,731.74-3,404.45

Finding the Fourth Proportional to 7,159.28, 10,731.74 and 3,404.45

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Solution

The fourth proportional to 7,159.28, 10,731.74 and 3,404.45 is: 5,103.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159.28 : 10,731.74 = 3,404.45 : x
  2. Step 2: Convert to fraction form
    7,159.28/10,731.74 = 3,404.45/x
  3. Step 3: Cross multiply
    7,159.28x = 10,731.74 × 3,404.45
  4. Step 4: Simplify right side
    7,159.28x = 36,535,627.10
  5. Step 5: Solve for x
    x = 36,535,627.10/7,159.28
  6. Step 6: Final answer
    x = 5,103.25

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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.