Home / 1,554.49-2,331.21-514.19

Finding the Fourth Proportional to 1,554.49, 2,331.21 and 514.19

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Solution

The fourth proportional to 1,554.49, 2,331.21 and 514.19 is: 771.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.49 : 2,331.21 = 514.19 : x
  2. Step 2: Convert to fraction form
    1,554.49/2,331.21 = 514.19/x
  3. Step 3: Cross multiply
    1,554.49x = 2,331.21 × 514.19
  4. Step 4: Simplify right side
    1,554.49x = 1,198,684.87
  5. Step 5: Solve for x
    x = 1,198,684.87/1,554.49
  6. Step 6: Final answer
    x = 771.11

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Double scale
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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.