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Finding the Fourth Proportional to 2,314.13, 3,471.12 and 853.25

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Solution

The fourth proportional to 2,314.13, 3,471.12 and 853.25 is: 1,279.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,314.13 : 3,471.12 = 853.25 : x
  2. Step 2: Convert to fraction form
    2,314.13/3,471.12 = 853.25/x
  3. Step 3: Cross multiply
    2,314.13x = 3,471.12 × 853.25
  4. Step 4: Simplify right side
    2,314.13x = 2,961,715.78
  5. Step 5: Solve for x
    x = 2,961,715.78/2,314.13
  6. Step 6: Final answer
    x = 1,279.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.