Home / 1,549.16-2,138.67-1,194.31

Finding the Fourth Proportional to 1,549.16, 2,138.67 and 1,194.31

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Solution

The fourth proportional to 1,549.16, 2,138.67 and 1,194.31 is: 1,648.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.16 : 2,138.67 = 1,194.31 : x
  2. Step 2: Convert to fraction form
    1,549.16/2,138.67 = 1,194.31/x
  3. Step 3: Cross multiply
    1,549.16x = 2,138.67 × 1,194.31
  4. Step 4: Simplify right side
    1,549.16x = 2,554,234.97
  5. Step 5: Solve for x
    x = 2,554,234.97/1,549.16
  6. Step 6: Final answer
    x = 1,648.79

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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.