Home / 5,288.91-7,298.82-2,931

Finding the Fourth Proportional to 5,288.91, 7,298.82 and 2,931

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Solution

The fourth proportional to 5,288.91, 7,298.82 and 2,931 is: 4,044.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,288.91 : 7,298.82 = 2,931 : x
  2. Step 2: Convert to fraction form
    5,288.91/7,298.82 = 2,931/x
  3. Step 3: Cross multiply
    5,288.91x = 7,298.82 × 2,931
  4. Step 4: Simplify right side
    5,288.91x = 21,392,841.42
  5. Step 5: Solve for x
    x = 21,392,841.42/5,288.91
  6. Step 6: Final answer
    x = 4,044.85

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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.