Home / 3,121.56-4,683.12-2,567.18

Finding the Fourth Proportional to 3,121.56, 4,683.12 and 2,567.18

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Solution

The fourth proportional to 3,121.56, 4,683.12 and 2,567.18 is: 3,851.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121.56 : 4,683.12 = 2,567.18 : x
  2. Step 2: Convert to fraction form
    3,121.56/4,683.12 = 2,567.18/x
  3. Step 3: Cross multiply
    3,121.56x = 4,683.12 × 2,567.18
  4. Step 4: Simplify right side
    3,121.56x = 12,022,412.00
  5. Step 5: Solve for x
    x = 12,022,412.00/3,121.56
  6. Step 6: Final answer
    x = 3,851.41

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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.