Home / 1,552.11-2,141.89-853.48

Finding the Fourth Proportional to 1,552.11, 2,141.89 and 853.48

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Solution

The fourth proportional to 1,552.11, 2,141.89 and 853.48 is: 1,177.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.11 : 2,141.89 = 853.48 : x
  2. Step 2: Convert to fraction form
    1,552.11/2,141.89 = 853.48/x
  3. Step 3: Cross multiply
    1,552.11x = 2,141.89 × 853.48
  4. Step 4: Simplify right side
    1,552.11x = 1,828,060.28
  5. Step 5: Solve for x
    x = 1,828,060.28/1,552.11
  6. Step 6: Final answer
    x = 1,177.79

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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.