Home / 5,280.76-7,918.56-2,159.52

Finding the Fourth Proportional to 5,280.76, 7,918.56 and 2,159.52

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Solution

The fourth proportional to 5,280.76, 7,918.56 and 2,159.52 is: 3,238.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.76 : 7,918.56 = 2,159.52 : x
  2. Step 2: Convert to fraction form
    5,280.76/7,918.56 = 2,159.52/x
  3. Step 3: Cross multiply
    5,280.76x = 7,918.56 × 2,159.52
  4. Step 4: Simplify right side
    5,280.76x = 17,100,288.69
  5. Step 5: Solve for x
    x = 17,100,288.69/5,280.76
  6. Step 6: Final answer
    x = 3,238.22

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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.