Home / 5,285.76-7,932.48-2,686.08

Finding the Fourth Proportional to 5,285.76, 7,932.48 and 2,686.08

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Solution

The fourth proportional to 5,285.76, 7,932.48 and 2,686.08 is: 4,031.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.76 : 7,932.48 = 2,686.08 : x
  2. Step 2: Convert to fraction form
    5,285.76/7,932.48 = 2,686.08/x
  3. Step 3: Cross multiply
    5,285.76x = 7,932.48 × 2,686.08
  4. Step 4: Simplify right side
    5,285.76x = 21,307,275.88
  5. Step 5: Solve for x
    x = 21,307,275.88/5,285.76
  6. Step 6: Final answer
    x = 4,031.07

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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.