Home / 2,373.31-3,274.92-1,378.40

Finding the Fourth Proportional to 2,373.31, 3,274.92 and 1,378.40

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Solution

The fourth proportional to 2,373.31, 3,274.92 and 1,378.40 is: 1,902.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,373.31 : 3,274.92 = 1,378.40 : x
  2. Step 2: Convert to fraction form
    2,373.31/3,274.92 = 1,378.40/x
  3. Step 3: Cross multiply
    2,373.31x = 3,274.92 × 1,378.40
  4. Step 4: Simplify right side
    2,373.31x = 4,514,149.73
  5. Step 5: Solve for x
    x = 4,514,149.73/2,373.31
  6. Step 6: Final answer
    x = 1,902.05

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1.5x scale

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.