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Finding the Fourth Proportional to 2,440.66, 3,368.13 and 1,392.76

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Solution

The fourth proportional to 2,440.66, 3,368.13 and 1,392.76 is: 1,922.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.66 : 3,368.13 = 1,392.76 : x
  2. Step 2: Convert to fraction form
    2,440.66/3,368.13 = 1,392.76/x
  3. Step 3: Cross multiply
    2,440.66x = 3,368.13 × 1,392.76
  4. Step 4: Simplify right side
    2,440.66x = 4,690,996.74
  5. Step 5: Solve for x
    x = 4,690,996.74/2,440.66
  6. Step 6: Final answer
    x = 1,922.02

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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.