Home / 1,244.61-1,867.05-513.77

Finding the Fourth Proportional to 1,244.61, 1,867.05 and 513.77

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Solution

The fourth proportional to 1,244.61, 1,867.05 and 513.77 is: 770.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.61 : 1,867.05 = 513.77 : x
  2. Step 2: Convert to fraction form
    1,244.61/1,867.05 = 513.77/x
  3. Step 3: Cross multiply
    1,244.61x = 1,867.05 × 513.77
  4. Step 4: Simplify right side
    1,244.61x = 959,224.94
  5. Step 5: Solve for x
    x = 959,224.94/1,244.61
  6. Step 6: Final answer
    x = 770.70

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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.