Home / 2,221.23-3,043.04-2,138.14

Finding the Fourth Proportional to 2,221.23, 3,043.04 and 2,138.14

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Solution

The fourth proportional to 2,221.23, 3,043.04 and 2,138.14 is: 2,929.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.23 : 3,043.04 = 2,138.14 : x
  2. Step 2: Convert to fraction form
    2,221.23/3,043.04 = 2,138.14/x
  3. Step 3: Cross multiply
    2,221.23x = 3,043.04 × 2,138.14
  4. Step 4: Simplify right side
    2,221.23x = 6,506,445.55
  5. Step 5: Solve for x
    x = 6,506,445.55/2,221.23
  6. Step 6: Final answer
    x = 2,929.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.