Home / 1,549.26-2,134.80-1,439.88

Finding the Fourth Proportional to 1,549.26, 2,134.80 and 1,439.88

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Solution

The fourth proportional to 1,549.26, 2,134.80 and 1,439.88 is: 1,984.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.26 : 2,134.80 = 1,439.88 : x
  2. Step 2: Convert to fraction form
    1,549.26/2,134.80 = 1,439.88/x
  3. Step 3: Cross multiply
    1,549.26x = 2,134.80 × 1,439.88
  4. Step 4: Simplify right side
    1,549.26x = 3,073,855.82
  5. Step 5: Solve for x
    x = 3,073,855.82/1,549.26
  6. Step 6: Final answer
    x = 1,984.08

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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.