Home / 1,077.14-1,615.60-491.98

Finding the Fourth Proportional to 1,077.14, 1,615.60 and 491.98

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Solution

The fourth proportional to 1,077.14, 1,615.60 and 491.98 is: 737.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077.14 : 1,615.60 = 491.98 : x
  2. Step 2: Convert to fraction form
    1,077.14/1,615.60 = 491.98/x
  3. Step 3: Cross multiply
    1,077.14x = 1,615.60 × 491.98
  4. Step 4: Simplify right side
    1,077.14x = 794,842.89
  5. Step 5: Solve for x
    x = 794,842.89/1,077.14
  6. Step 6: Final answer
    x = 737.92

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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.