Home / 2,440.13-3,367.47-1,392.14

Finding the Fourth Proportional to 2,440.13, 3,367.47 and 1,392.14

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Solution

The fourth proportional to 2,440.13, 3,367.47 and 1,392.14 is: 1,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.13 : 3,367.47 = 1,392.14 : x
  2. Step 2: Convert to fraction form
    2,440.13/3,367.47 = 1,392.14/x
  3. Step 3: Cross multiply
    2,440.13x = 3,367.47 × 1,392.14
  4. Step 4: Simplify right side
    2,440.13x = 4,687,989.69
  5. Step 5: Solve for x
    x = 4,687,989.69/2,440.13
  6. Step 6: Final answer
    x = 1,921.20

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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.