Home / 1,116.23-1,540.37-612.08

Finding the Fourth Proportional to 1,116.23, 1,540.37 and 612.08

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Solution

The fourth proportional to 1,116.23, 1,540.37 and 612.08 is: 844.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.23 : 1,540.37 = 612.08 : x
  2. Step 2: Convert to fraction form
    1,116.23/1,540.37 = 612.08/x
  3. Step 3: Cross multiply
    1,116.23x = 1,540.37 × 612.08
  4. Step 4: Simplify right side
    1,116.23x = 942,823.50
  5. Step 5: Solve for x
    x = 942,823.50/1,116.23
  6. Step 6: Final answer
    x = 844.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.