Home / 5,281.00-7,918.76-2,815.16

Finding the Fourth Proportional to 5,281.00, 7,918.76 and 2,815.16

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Solution

The fourth proportional to 5,281.00, 7,918.76 and 2,815.16 is: 4,221.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.00 : 7,918.76 = 2,815.16 : x
  2. Step 2: Convert to fraction form
    5,281.00/7,918.76 = 2,815.16/x
  3. Step 3: Cross multiply
    5,281.00x = 7,918.76 × 2,815.16
  4. Step 4: Simplify right side
    5,281.00x = 22,292,543.85
  5. Step 5: Solve for x
    x = 22,292,543.85/5,281.00
  6. Step 6: Final answer
    x = 4,221.28

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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.