Home / 2,440.88-3,368.34-1,392.90

Finding the Fourth Proportional to 2,440.88, 3,368.34 and 1,392.90

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Solution

The fourth proportional to 2,440.88, 3,368.34 and 1,392.90 is: 1,922.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.88 : 3,368.34 = 1,392.90 : x
  2. Step 2: Convert to fraction form
    2,440.88/3,368.34 = 1,392.90/x
  3. Step 3: Cross multiply
    2,440.88x = 3,368.34 × 1,392.90
  4. Step 4: Simplify right side
    2,440.88x = 4,691,760.79
  5. Step 5: Solve for x
    x = 4,691,760.79/2,440.88
  6. Step 6: Final answer
    x = 1,922.16

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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.