Home / 3,027.96-4,172.45-2,187.18

Finding the Fourth Proportional to 3,027.96, 4,172.45 and 2,187.18

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Solution

The fourth proportional to 3,027.96, 4,172.45 and 2,187.18 is: 3,013.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,027.96 : 4,172.45 = 2,187.18 : x
  2. Step 2: Convert to fraction form
    3,027.96/4,172.45 = 2,187.18/x
  3. Step 3: Cross multiply
    3,027.96x = 4,172.45 × 2,187.18
  4. Step 4: Simplify right side
    3,027.96x = 9,125,888.26
  5. Step 5: Solve for x
    x = 9,125,888.26/3,027.96
  6. Step 6: Final answer
    x = 3,013.87

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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.