Home / 1,245.41-1,868.10-514.17

Finding the Fourth Proportional to 1,245.41, 1,868.10 and 514.17

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Solution

The fourth proportional to 1,245.41, 1,868.10 and 514.17 is: 771.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245.41 : 1,868.10 = 514.17 : x
  2. Step 2: Convert to fraction form
    1,245.41/1,868.10 = 514.17/x
  3. Step 3: Cross multiply
    1,245.41x = 1,868.10 × 514.17
  4. Step 4: Simplify right side
    1,245.41x = 960,520.98
  5. Step 5: Solve for x
    x = 960,520.98/1,245.41
  6. Step 6: Final answer
    x = 771.25

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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.