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Finding the Fourth Proportional to 2,077.98, 3,116.97 and 618.24

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Solution

The fourth proportional to 2,077.98, 3,116.97 and 618.24 is: 927.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077.98 : 3,116.97 = 618.24 : x
  2. Step 2: Convert to fraction form
    2,077.98/3,116.97 = 618.24/x
  3. Step 3: Cross multiply
    2,077.98x = 3,116.97 × 618.24
  4. Step 4: Simplify right side
    2,077.98x = 1,927,035.53
  5. Step 5: Solve for x
    x = 1,927,035.53/2,077.98
  6. Step 6: Final answer
    x = 927.36

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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.