Home / 1,077.27-1,615.52-514.33

Finding the Fourth Proportional to 1,077.27, 1,615.52 and 514.33

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Solution

The fourth proportional to 1,077.27, 1,615.52 and 514.33 is: 771.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077.27 : 1,615.52 = 514.33 : x
  2. Step 2: Convert to fraction form
    1,077.27/1,615.52 = 514.33/x
  3. Step 3: Cross multiply
    1,077.27x = 1,615.52 × 514.33
  4. Step 4: Simplify right side
    1,077.27x = 830,910.40
  5. Step 5: Solve for x
    x = 830,910.40/1,077.27
  6. Step 6: Final answer
    x = 771.31

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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.