Home / 1,549.35-2,138.12-886.23

Finding the Fourth Proportional to 1,549.35, 2,138.12 and 886.23

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Solution

The fourth proportional to 1,549.35, 2,138.12 and 886.23 is: 1,223.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.35 : 2,138.12 = 886.23 : x
  2. Step 2: Convert to fraction form
    1,549.35/2,138.12 = 886.23/x
  3. Step 3: Cross multiply
    1,549.35x = 2,138.12 × 886.23
  4. Step 4: Simplify right side
    1,549.35x = 1,894,866.09
  5. Step 5: Solve for x
    x = 1,894,866.09/1,549.35
  6. Step 6: Final answer
    x = 1,223.01

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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.