Home / 2,618.94-3,614.20-1,440.12

Finding the Fourth Proportional to 2,618.94, 3,614.20 and 1,440.12

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Solution

The fourth proportional to 2,618.94, 3,614.20 and 1,440.12 is: 1,987.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.94 : 3,614.20 = 1,440.12 : x
  2. Step 2: Convert to fraction form
    2,618.94/3,614.20 = 1,440.12/x
  3. Step 3: Cross multiply
    2,618.94x = 3,614.20 × 1,440.12
  4. Step 4: Simplify right side
    2,618.94x = 5,204,881.70
  5. Step 5: Solve for x
    x = 5,204,881.70/2,618.94
  6. Step 6: Final answer
    x = 1,987.40

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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.