Home / 2,440.06-3,366.45-1,391.86

Finding the Fourth Proportional to 2,440.06, 3,366.45 and 1,391.86

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Solution

The fourth proportional to 2,440.06, 3,366.45 and 1,391.86 is: 1,920.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.06 : 3,366.45 = 1,391.86 : x
  2. Step 2: Convert to fraction form
    2,440.06/3,366.45 = 1,391.86/x
  3. Step 3: Cross multiply
    2,440.06x = 3,366.45 × 1,391.86
  4. Step 4: Simplify right side
    2,440.06x = 4,685,627.10
  5. Step 5: Solve for x
    x = 4,685,627.10/2,440.06
  6. Step 6: Final answer
    x = 1,920.29

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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.