Home / 2,229.76-3,077.05-1,445.17

Finding the Fourth Proportional to 2,229.76, 3,077.05 and 1,445.17

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Solution

The fourth proportional to 2,229.76, 3,077.05 and 1,445.17 is: 1,994.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.76 : 3,077.05 = 1,445.17 : x
  2. Step 2: Convert to fraction form
    2,229.76/3,077.05 = 1,445.17/x
  3. Step 3: Cross multiply
    2,229.76x = 3,077.05 × 1,445.17
  4. Step 4: Simplify right side
    2,229.76x = 4,446,860.35
  5. Step 5: Solve for x
    x = 4,446,860.35/2,229.76
  6. Step 6: Final answer
    x = 1,994.32

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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.