Home / 2,950.20-4,428.38-1,307.90

Finding the Fourth Proportional to 2,950.20, 4,428.38 and 1,307.90

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Solution

The fourth proportional to 2,950.20, 4,428.38 and 1,307.90 is: 1,963.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,950.20 : 4,428.38 = 1,307.90 : x
  2. Step 2: Convert to fraction form
    2,950.20/4,428.38 = 1,307.90/x
  3. Step 3: Cross multiply
    2,950.20x = 4,428.38 × 1,307.90
  4. Step 4: Simplify right side
    2,950.20x = 5,791,882.73
  5. Step 5: Solve for x
    x = 5,791,882.73/2,950.20
  6. Step 6: Final answer
    x = 1,963.22

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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.