Home / 2,812.47-4,217.08-1,079.07

Finding the Fourth Proportional to 2,812.47, 4,217.08 and 1,079.07

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Solution

The fourth proportional to 2,812.47, 4,217.08 and 1,079.07 is: 1,617.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.47 : 4,217.08 = 1,079.07 : x
  2. Step 2: Convert to fraction form
    2,812.47/4,217.08 = 1,079.07/x
  3. Step 3: Cross multiply
    2,812.47x = 4,217.08 × 1,079.07
  4. Step 4: Simplify right side
    2,812.47x = 4,550,524.52
  5. Step 5: Solve for x
    x = 4,550,524.52/2,812.47
  6. Step 6: Final answer
    x = 1,617.98

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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.