Home / 2,219.70-3,329.55-1,296.30

Finding the Fourth Proportional to 2,219.70, 3,329.55 and 1,296.30

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Solution

The fourth proportional to 2,219.70, 3,329.55 and 1,296.30 is: 1,944.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.70 : 3,329.55 = 1,296.30 : x
  2. Step 2: Convert to fraction form
    2,219.70/3,329.55 = 1,296.30/x
  3. Step 3: Cross multiply
    2,219.70x = 3,329.55 × 1,296.30
  4. Step 4: Simplify right side
    2,219.70x = 4,316,095.67
  5. Step 5: Solve for x
    x = 4,316,095.67/2,219.70
  6. Step 6: Final answer
    x = 1,944.45

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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.