Home / 2,440.68-3,368.18-1,392.76

Finding the Fourth Proportional to 2,440.68, 3,368.18 and 1,392.76

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Solution

The fourth proportional to 2,440.68, 3,368.18 and 1,392.76 is: 1,922.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.68 : 3,368.18 = 1,392.76 : x
  2. Step 2: Convert to fraction form
    2,440.68/3,368.18 = 1,392.76/x
  3. Step 3: Cross multiply
    2,440.68x = 3,368.18 × 1,392.76
  4. Step 4: Simplify right side
    2,440.68x = 4,691,066.38
  5. Step 5: Solve for x
    x = 4,691,066.38/2,440.68
  6. Step 6: Final answer
    x = 1,922.03

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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.