Home / 2,154.64-3,229.80-1,001.20

Finding the Fourth Proportional to 2,154.64, 3,229.80 and 1,001.20

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Solution

The fourth proportional to 2,154.64, 3,229.80 and 1,001.20 is: 1,500.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.64 : 3,229.80 = 1,001.20 : x
  2. Step 2: Convert to fraction form
    2,154.64/3,229.80 = 1,001.20/x
  3. Step 3: Cross multiply
    2,154.64x = 3,229.80 × 1,001.20
  4. Step 4: Simplify right side
    2,154.64x = 3,233,675.76
  5. Step 5: Solve for x
    x = 3,233,675.76/2,154.64
  6. Step 6: Final answer
    x = 1,500.80

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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.