Home / 2,373.40-3,275.91-1,378.55

Finding the Fourth Proportional to 2,373.40, 3,275.91 and 1,378.55

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Solution

The fourth proportional to 2,373.40, 3,275.91 and 1,378.55 is: 1,902.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,373.40 : 3,275.91 = 1,378.55 : x
  2. Step 2: Convert to fraction form
    2,373.40/3,275.91 = 1,378.55/x
  3. Step 3: Cross multiply
    2,373.40x = 3,275.91 × 1,378.55
  4. Step 4: Simplify right side
    2,373.40x = 4,516,013.92
  5. Step 5: Solve for x
    x = 4,516,013.92/2,373.40
  6. Step 6: Final answer
    x = 1,902.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.