Home / 2,440.55-3,367.65-1,378.17

Finding the Fourth Proportional to 2,440.55, 3,367.65 and 1,378.17

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Solution

The fourth proportional to 2,440.55, 3,367.65 and 1,378.17 is: 1,901.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.55 : 3,367.65 = 1,378.17 : x
  2. Step 2: Convert to fraction form
    2,440.55/3,367.65 = 1,378.17/x
  3. Step 3: Cross multiply
    2,440.55x = 3,367.65 × 1,378.17
  4. Step 4: Simplify right side
    2,440.55x = 4,641,194.20
  5. Step 5: Solve for x
    x = 4,641,194.20/2,440.55
  6. Step 6: Final answer
    x = 1,901.70

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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.