Home / 2,618.93-3,614.20-1,440.08

Finding the Fourth Proportional to 2,618.93, 3,614.20 and 1,440.08

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Solution

The fourth proportional to 2,618.93, 3,614.20 and 1,440.08 is: 1,987.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.93 : 3,614.20 = 1,440.08 : x
  2. Step 2: Convert to fraction form
    2,618.93/3,614.20 = 1,440.08/x
  3. Step 3: Cross multiply
    2,618.93x = 3,614.20 × 1,440.08
  4. Step 4: Simplify right side
    2,618.93x = 5,204,737.14
  5. Step 5: Solve for x
    x = 5,204,737.14/2,618.93
  6. Step 6: Final answer
    x = 1,987.35

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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.