Home / 5,288.90-7,298.51-2,931.12

Finding the Fourth Proportional to 5,288.90, 7,298.51 and 2,931.12

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Solution

The fourth proportional to 5,288.90, 7,298.51 and 2,931.12 is: 4,044.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,288.90 : 7,298.51 = 2,931.12 : x
  2. Step 2: Convert to fraction form
    5,288.90/7,298.51 = 2,931.12/x
  3. Step 3: Cross multiply
    5,288.90x = 7,298.51 × 2,931.12
  4. Step 4: Simplify right side
    5,288.90x = 21,392,793.98
  5. Step 5: Solve for x
    x = 21,392,793.98/5,288.90
  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.