Home / 2,760.13-4,140.47-911.26

Finding the Fourth Proportional to 2,760.13, 4,140.47 and 911.26

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Solution

The fourth proportional to 2,760.13, 4,140.47 and 911.26 is: 1,366.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.13 : 4,140.47 = 911.26 : x
  2. Step 2: Convert to fraction form
    2,760.13/4,140.47 = 911.26/x
  3. Step 3: Cross multiply
    2,760.13x = 4,140.47 × 911.26
  4. Step 4: Simplify right side
    2,760.13x = 3,773,044.69
  5. Step 5: Solve for x
    x = 3,773,044.69/2,760.13
  6. Step 6: Final answer
    x = 1,366.98

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1.5x scale

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.