Home / 2,378.28-3,564.04-1,127.54

Finding the Fourth Proportional to 2,378.28, 3,564.04 and 1,127.54

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Solution

The fourth proportional to 2,378.28, 3,564.04 and 1,127.54 is: 1,689.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.28 : 3,564.04 = 1,127.54 : x
  2. Step 2: Convert to fraction form
    2,378.28/3,564.04 = 1,127.54/x
  3. Step 3: Cross multiply
    2,378.28x = 3,564.04 × 1,127.54
  4. Step 4: Simplify right side
    2,378.28x = 4,018,597.66
  5. Step 5: Solve for x
    x = 4,018,597.66/2,378.28
  6. Step 6: Final answer
    x = 1,689.71

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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.