Home / 2,980.24-4,463.88-1,438

Finding the Fourth Proportional to 2,980.24, 4,463.88 and 1,438

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Solution

The fourth proportional to 2,980.24, 4,463.88 and 1,438 is: 2,153.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.24 : 4,463.88 = 1,438 : x
  2. Step 2: Convert to fraction form
    2,980.24/4,463.88 = 1,438/x
  3. Step 3: Cross multiply
    2,980.24x = 4,463.88 × 1,438
  4. Step 4: Simplify right side
    2,980.24x = 6,419,059.44
  5. Step 5: Solve for x
    x = 6,419,059.44/2,980.24
  6. Step 6: Final answer
    x = 2,153.87

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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.