Home / 1,014.16-1,399.53-572.20

Finding the Fourth Proportional to 1,014.16, 1,399.53 and 572.20

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Solution

The fourth proportional to 1,014.16, 1,399.53 and 572.20 is: 789.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,014.16 : 1,399.53 = 572.20 : x
  2. Step 2: Convert to fraction form
    1,014.16/1,399.53 = 572.20/x
  3. Step 3: Cross multiply
    1,014.16x = 1,399.53 × 572.20
  4. Step 4: Simplify right side
    1,014.16x = 800,811.07
  5. Step 5: Solve for x
    x = 800,811.07/1,014.16
  6. Step 6: Final answer
    x = 789.63

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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.