Home / 3,167.67-4,370.04-2,159.22

Finding the Fourth Proportional to 3,167.67, 4,370.04 and 2,159.22

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Solution

The fourth proportional to 3,167.67, 4,370.04 and 2,159.22 is: 2,978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.67 : 4,370.04 = 2,159.22 : x
  2. Step 2: Convert to fraction form
    3,167.67/4,370.04 = 2,159.22/x
  3. Step 3: Cross multiply
    3,167.67x = 4,370.04 × 2,159.22
  4. Step 4: Simplify right side
    3,167.67x = 9,435,877.77
  5. Step 5: Solve for x
    x = 9,435,877.77/3,167.67
  6. Step 6: Final answer
    x = 2,978.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.