Home / 2,772.96-4,160.01-1,129.52

Finding the Fourth Proportional to 2,772.96, 4,160.01 and 1,129.52

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Solution

The fourth proportional to 2,772.96, 4,160.01 and 1,129.52 is: 1,694.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.96 : 4,160.01 = 1,129.52 : x
  2. Step 2: Convert to fraction form
    2,772.96/4,160.01 = 1,129.52/x
  3. Step 3: Cross multiply
    2,772.96x = 4,160.01 × 1,129.52
  4. Step 4: Simplify right side
    2,772.96x = 4,698,793.70
  5. Step 5: Solve for x
    x = 4,698,793.70/2,772.96
  6. Step 6: Final answer
    x = 1,694.50

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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.