Home / 2,760.20-4,140.43-1,116.54

Finding the Fourth Proportional to 2,760.20, 4,140.43 and 1,116.54

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Solution

The fourth proportional to 2,760.20, 4,140.43 and 1,116.54 is: 1,674.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.20 : 4,140.43 = 1,116.54 : x
  2. Step 2: Convert to fraction form
    2,760.20/4,140.43 = 1,116.54/x
  3. Step 3: Cross multiply
    2,760.20x = 4,140.43 × 1,116.54
  4. Step 4: Simplify right side
    2,760.20x = 4,622,955.71
  5. Step 5: Solve for x
    x = 4,622,955.71/2,760.20
  6. Step 6: Final answer
    x = 1,674.86

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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.