Home / 1,363.27-2,042.95-777.06

Finding the Fourth Proportional to 1,363.27, 2,042.95 and 777.06

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Solution

The fourth proportional to 1,363.27, 2,042.95 and 777.06 is: 1,164.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363.27 : 2,042.95 = 777.06 : x
  2. Step 2: Convert to fraction form
    1,363.27/2,042.95 = 777.06/x
  3. Step 3: Cross multiply
    1,363.27x = 2,042.95 × 777.06
  4. Step 4: Simplify right side
    1,363.27x = 1,587,492.78
  5. Step 5: Solve for x
    x = 1,587,492.78/1,363.27
  6. Step 6: Final answer
    x = 1,164.48

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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.