Home / 2,812.76-4,221.02-1,169.30

Finding the Fourth Proportional to 2,812.76, 4,221.02 and 1,169.30

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Solution

The fourth proportional to 2,812.76, 4,221.02 and 1,169.30 is: 1,754.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.76 : 4,221.02 = 1,169.30 : x
  2. Step 2: Convert to fraction form
    2,812.76/4,221.02 = 1,169.30/x
  3. Step 3: Cross multiply
    2,812.76x = 4,221.02 × 1,169.30
  4. Step 4: Simplify right side
    2,812.76x = 4,935,638.69
  5. Step 5: Solve for x
    x = 4,935,638.69/2,812.76
  6. Step 6: Final answer
    x = 1,754.73

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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.