Home / 7,113.79-10,676.13-3,220.93

Finding the Fourth Proportional to 7,113.79, 10,676.13 and 3,220.93

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Solution

The fourth proportional to 7,113.79, 10,676.13 and 3,220.93 is: 4,833.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113.79 : 10,676.13 = 3,220.93 : x
  2. Step 2: Convert to fraction form
    7,113.79/10,676.13 = 3,220.93/x
  3. Step 3: Cross multiply
    7,113.79x = 10,676.13 × 3,220.93
  4. Step 4: Simplify right side
    7,113.79x = 34,387,067.40
  5. Step 5: Solve for x
    x = 34,387,067.40/7,113.79
  6. Step 6: Final answer
    x = 4,833.86

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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.