Home / 2,440.11-3,367.40-1,378.10

Finding the Fourth Proportional to 2,440.11, 3,367.40 and 1,378.10

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Solution

The fourth proportional to 2,440.11, 3,367.40 and 1,378.10 is: 1,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.11 : 3,367.40 = 1,378.10 : x
  2. Step 2: Convert to fraction form
    2,440.11/3,367.40 = 1,378.10/x
  3. Step 3: Cross multiply
    2,440.11x = 3,367.40 × 1,378.10
  4. Step 4: Simplify right side
    2,440.11x = 4,640,590.21
  5. Step 5: Solve for x
    x = 4,640,590.21/2,440.11
  6. Step 6: Final answer
    x = 1,901.80

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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.