Home / 2,220.98-3,330.45-1,296.82

Finding the Fourth Proportional to 2,220.98, 3,330.45 and 1,296.82

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Solution

The fourth proportional to 2,220.98, 3,330.45 and 1,296.82 is: 1,944.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.98 : 3,330.45 = 1,296.82 : x
  2. Step 2: Convert to fraction form
    2,220.98/3,330.45 = 1,296.82/x
  3. Step 3: Cross multiply
    2,220.98x = 3,330.45 × 1,296.82
  4. Step 4: Simplify right side
    2,220.98x = 4,318,994.17
  5. Step 5: Solve for x
    x = 4,318,994.17/2,220.98
  6. Step 6: Final answer
    x = 1,944.63

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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.