Home / 2,763.02-4,144.80-913.70

Finding the Fourth Proportional to 2,763.02, 4,144.80 and 913.70

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Solution

The fourth proportional to 2,763.02, 4,144.80 and 913.70 is: 1,370.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.02 : 4,144.80 = 913.70 : x
  2. Step 2: Convert to fraction form
    2,763.02/4,144.80 = 913.70/x
  3. Step 3: Cross multiply
    2,763.02x = 4,144.80 × 913.70
  4. Step 4: Simplify right side
    2,763.02x = 3,787,103.76
  5. Step 5: Solve for x
    x = 3,787,103.76/2,763.02
  6. Step 6: Final answer
    x = 1,370.64

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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.