Home / 2,742.40-4,113.20-1,010.64

Finding the Fourth Proportional to 2,742.40, 4,113.20 and 1,010.64

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Solution

The fourth proportional to 2,742.40, 4,113.20 and 1,010.64 is: 1,515.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.40 : 4,113.20 = 1,010.64 : x
  2. Step 2: Convert to fraction form
    2,742.40/4,113.20 = 1,010.64/x
  3. Step 3: Cross multiply
    2,742.40x = 4,113.20 × 1,010.64
  4. Step 4: Simplify right side
    2,742.40x = 4,156,964.45
  5. Step 5: Solve for x
    x = 4,156,964.45/2,742.40
  6. Step 6: Final answer
    x = 1,515.81

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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.