Home / 2,949.28-4,421.17-1,000.12

Finding the Fourth Proportional to 2,949.28, 4,421.17 and 1,000.12

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Solution

The fourth proportional to 2,949.28, 4,421.17 and 1,000.12 is: 1,499.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.28 : 4,421.17 = 1,000.12 : x
  2. Step 2: Convert to fraction form
    2,949.28/4,421.17 = 1,000.12/x
  3. Step 3: Cross multiply
    2,949.28x = 4,421.17 × 1,000.12
  4. Step 4: Simplify right side
    2,949.28x = 4,421,700.54
  5. Step 5: Solve for x
    x = 4,421,700.54/2,949.28
  6. Step 6: Final answer
    x = 1,499.25

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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.