Home / 1,552.21-2,142.01-853.59

Finding the Fourth Proportional to 1,552.21, 2,142.01 and 853.59

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Solution

The fourth proportional to 1,552.21, 2,142.01 and 853.59 is: 1,177.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.21 : 2,142.01 = 853.59 : x
  2. Step 2: Convert to fraction form
    1,552.21/2,142.01 = 853.59/x
  3. Step 3: Cross multiply
    1,552.21x = 2,142.01 × 853.59
  4. Step 4: Simplify right side
    1,552.21x = 1,828,385.47
  5. Step 5: Solve for x
    x = 1,828,385.47/1,552.21
  6. Step 6: Final answer
    x = 1,177.92

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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.