Home / 6,689.46-10,031.06-2,991.70

Finding the Fourth Proportional to 6,689.46, 10,031.06 and 2,991.70

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Solution

The fourth proportional to 6,689.46, 10,031.06 and 2,991.70 is: 4,486.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,689.46 : 10,031.06 = 2,991.70 : x
  2. Step 2: Convert to fraction form
    6,689.46/10,031.06 = 2,991.70/x
  3. Step 3: Cross multiply
    6,689.46x = 10,031.06 × 2,991.70
  4. Step 4: Simplify right side
    6,689.46x = 30,009,922.20
  5. Step 5: Solve for x
    x = 30,009,922.20/6,689.46
  6. Step 6: Final answer
    x = 4,486.15

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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.