Home / 2,748.12-4,120.26-1,359.76

Finding the Fourth Proportional to 2,748.12, 4,120.26 and 1,359.76

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Solution

The fourth proportional to 2,748.12, 4,120.26 and 1,359.76 is: 2,038.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.12 : 4,120.26 = 1,359.76 : x
  2. Step 2: Convert to fraction form
    2,748.12/4,120.26 = 1,359.76/x
  3. Step 3: Cross multiply
    2,748.12x = 4,120.26 × 1,359.76
  4. Step 4: Simplify right side
    2,748.12x = 5,602,564.74
  5. Step 5: Solve for x
    x = 5,602,564.74/2,748.12
  6. Step 6: Final answer
    x = 2,038.69

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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.