Home / 2,761.03-4,143.30-1,528.21

Finding the Fourth Proportional to 2,761.03, 4,143.30 and 1,528.21

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Solution

The fourth proportional to 2,761.03, 4,143.30 and 1,528.21 is: 2,293.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.03 : 4,143.30 = 1,528.21 : x
  2. Step 2: Convert to fraction form
    2,761.03/4,143.30 = 1,528.21/x
  3. Step 3: Cross multiply
    2,761.03x = 4,143.30 × 1,528.21
  4. Step 4: Simplify right side
    2,761.03x = 6,331,832.49
  5. Step 5: Solve for x
    x = 6,331,832.49/2,761.03
  6. Step 6: Final answer
    x = 2,293.29

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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.