Home / 2,477.20-3,713.28-1,381.36

Finding the Fourth Proportional to 2,477.20, 3,713.28 and 1,381.36

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Solution

The fourth proportional to 2,477.20, 3,713.28 and 1,381.36 is: 2,070.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,477.20 : 3,713.28 = 1,381.36 : x
  2. Step 2: Convert to fraction form
    2,477.20/3,713.28 = 1,381.36/x
  3. Step 3: Cross multiply
    2,477.20x = 3,713.28 × 1,381.36
  4. Step 4: Simplify right side
    2,477.20x = 5,129,376.46
  5. Step 5: Solve for x
    x = 5,129,376.46/2,477.20
  6. Step 6: Final answer
    x = 2,070.63

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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.