Home / 3,130.58-4,687.68-2,031.62

Finding the Fourth Proportional to 3,130.58, 4,687.68 and 2,031.62

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Solution

The fourth proportional to 3,130.58, 4,687.68 and 2,031.62 is: 3,042.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.58 : 4,687.68 = 2,031.62 : x
  2. Step 2: Convert to fraction form
    3,130.58/4,687.68 = 2,031.62/x
  3. Step 3: Cross multiply
    3,130.58x = 4,687.68 × 2,031.62
  4. Step 4: Simplify right side
    3,130.58x = 9,523,584.44
  5. Step 5: Solve for x
    x = 9,523,584.44/3,130.58
  6. Step 6: Final answer
    x = 3,042.12

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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.