Home / 2,760.74-4,142.46-1,118.46

Finding the Fourth Proportional to 2,760.74, 4,142.46 and 1,118.46

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Solution

The fourth proportional to 2,760.74, 4,142.46 and 1,118.46 is: 1,678.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.74 : 4,142.46 = 1,118.46 : x
  2. Step 2: Convert to fraction form
    2,760.74/4,142.46 = 1,118.46/x
  3. Step 3: Cross multiply
    2,760.74x = 4,142.46 × 1,118.46
  4. Step 4: Simplify right side
    2,760.74x = 4,633,175.81
  5. Step 5: Solve for x
    x = 4,633,175.81/2,760.74
  6. Step 6: Final answer
    x = 1,678.24

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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.