Home / 2,440.92-3,368.17-1,378.54

Finding the Fourth Proportional to 2,440.92, 3,368.17 and 1,378.54

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Solution

The fourth proportional to 2,440.92, 3,368.17 and 1,378.54 is: 1,902.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.92 : 3,368.17 = 1,378.54 : x
  2. Step 2: Convert to fraction form
    2,440.92/3,368.17 = 1,378.54/x
  3. Step 3: Cross multiply
    2,440.92x = 3,368.17 × 1,378.54
  4. Step 4: Simplify right side
    2,440.92x = 4,643,157.07
  5. Step 5: Solve for x
    x = 4,643,157.07/2,440.92
  6. Step 6: Final answer
    x = 1,902.22

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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.