Home / 2,118.87-3,177.75-948.22

Finding the Fourth Proportional to 2,118.87, 3,177.75 and 948.22

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Solution

The fourth proportional to 2,118.87, 3,177.75 and 948.22 is: 1,422.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.87 : 3,177.75 = 948.22 : x
  2. Step 2: Convert to fraction form
    2,118.87/3,177.75 = 948.22/x
  3. Step 3: Cross multiply
    2,118.87x = 3,177.75 × 948.22
  4. Step 4: Simplify right side
    2,118.87x = 3,013,198.16
  5. Step 5: Solve for x
    x = 3,013,198.16/2,118.87
  6. Step 6: Final answer
    x = 1,422.08

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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.