Home / 7,146.18-10,720.35-2,528.82

Finding the Fourth Proportional to 7,146.18, 10,720.35 and 2,528.82

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Solution

The fourth proportional to 7,146.18, 10,720.35 and 2,528.82 is: 3,793.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.18 : 10,720.35 = 2,528.82 : x
  2. Step 2: Convert to fraction form
    7,146.18/10,720.35 = 2,528.82/x
  3. Step 3: Cross multiply
    7,146.18x = 10,720.35 × 2,528.82
  4. Step 4: Simplify right side
    7,146.18x = 27,109,835.49
  5. Step 5: Solve for x
    x = 27,109,835.49/7,146.18
  6. Step 6: Final answer
    x = 3,793.61

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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.