Home / 1,116.02-1,674.60-531.68

Finding the Fourth Proportional to 1,116.02, 1,674.60 and 531.68

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Solution

The fourth proportional to 1,116.02, 1,674.60 and 531.68 is: 797.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.02 : 1,674.60 = 531.68 : x
  2. Step 2: Convert to fraction form
    1,116.02/1,674.60 = 531.68/x
  3. Step 3: Cross multiply
    1,116.02x = 1,674.60 × 531.68
  4. Step 4: Simplify right side
    1,116.02x = 890,351.33
  5. Step 5: Solve for x
    x = 890,351.33/1,116.02
  6. Step 6: Final answer
    x = 797.79

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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.