Home / 2,812.16-4,217.85-1,167.81

Finding the Fourth Proportional to 2,812.16, 4,217.85 and 1,167.81

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Solution

The fourth proportional to 2,812.16, 4,217.85 and 1,167.81 is: 1,751.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.16 : 4,217.85 = 1,167.81 : x
  2. Step 2: Convert to fraction form
    2,812.16/4,217.85 = 1,167.81/x
  3. Step 3: Cross multiply
    2,812.16x = 4,217.85 × 1,167.81
  4. Step 4: Simplify right side
    2,812.16x = 4,925,647.41
  5. Step 5: Solve for x
    x = 4,925,647.41/2,812.16
  6. Step 6: Final answer
    x = 1,751.55

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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.