Home / 1,118.18-1,674.75-540.02

Finding the Fourth Proportional to 1,118.18, 1,674.75 and 540.02

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Solution

The fourth proportional to 1,118.18, 1,674.75 and 540.02 is: 808.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118.18 : 1,674.75 = 540.02 : x
  2. Step 2: Convert to fraction form
    1,118.18/1,674.75 = 540.02/x
  3. Step 3: Cross multiply
    1,118.18x = 1,674.75 × 540.02
  4. Step 4: Simplify right side
    1,118.18x = 904,398.50
  5. Step 5: Solve for x
    x = 904,398.50/1,118.18
  6. Step 6: Final answer
    x = 808.81

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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.