Home / 6,687.66-10,031.61-2,070.78

Finding the Fourth Proportional to 6,687.66, 10,031.61 and 2,070.78

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Solution

The fourth proportional to 6,687.66, 10,031.61 and 2,070.78 is: 3,106.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687.66 : 10,031.61 = 2,070.78 : x
  2. Step 2: Convert to fraction form
    6,687.66/10,031.61 = 2,070.78/x
  3. Step 3: Cross multiply
    6,687.66x = 10,031.61 × 2,070.78
  4. Step 4: Simplify right side
    6,687.66x = 20,773,257.36
  5. Step 5: Solve for x
    x = 20,773,257.36/6,687.66
  6. Step 6: Final answer
    x = 3,106.21

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1.5x scale

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.