Home / 2,218.95-3,063.45-1,972.89

Finding the Fourth Proportional to 2,218.95, 3,063.45 and 1,972.89

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Solution

The fourth proportional to 2,218.95, 3,063.45 and 1,972.89 is: 2,723.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.95 : 3,063.45 = 1,972.89 : x
  2. Step 2: Convert to fraction form
    2,218.95/3,063.45 = 1,972.89/x
  3. Step 3: Cross multiply
    2,218.95x = 3,063.45 × 1,972.89
  4. Step 4: Simplify right side
    2,218.95x = 6,043,849.87
  5. Step 5: Solve for x
    x = 6,043,849.87/2,218.95
  6. Step 6: Final answer
    x = 2,723.74

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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.