Home / 1,251.85-1,867.13-1,088.23

Finding the Fourth Proportional to 1,251.85, 1,867.13 and 1,088.23

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Solution

The fourth proportional to 1,251.85, 1,867.13 and 1,088.23 is: 1,623.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251.85 : 1,867.13 = 1,088.23 : x
  2. Step 2: Convert to fraction form
    1,251.85/1,867.13 = 1,088.23/x
  3. Step 3: Cross multiply
    1,251.85x = 1,867.13 × 1,088.23
  4. Step 4: Simplify right side
    1,251.85x = 2,031,857.54
  5. Step 5: Solve for x
    x = 2,031,857.54/1,251.85
  6. Step 6: Final answer
    x = 1,623.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.