Home / 2,440.92-3,368.40-1,392.96

Finding the Fourth Proportional to 2,440.92, 3,368.40 and 1,392.96

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Solution

The fourth proportional to 2,440.92, 3,368.40 and 1,392.96 is: 1,922.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.92 : 3,368.40 = 1,392.96 : x
  2. Step 2: Convert to fraction form
    2,440.92/3,368.40 = 1,392.96/x
  3. Step 3: Cross multiply
    2,440.92x = 3,368.40 × 1,392.96
  4. Step 4: Simplify right side
    2,440.92x = 4,692,046.46
  5. Step 5: Solve for x
    x = 4,692,046.46/2,440.92
  6. Step 6: Final answer
    x = 1,922.25

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Double scale
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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.