Home / 5,160.93-7,122.20-3,170.34

Finding the Fourth Proportional to 5,160.93, 7,122.20 and 3,170.34

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Solution

The fourth proportional to 5,160.93, 7,122.20 and 3,170.34 is: 4,375.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.93 : 7,122.20 = 3,170.34 : x
  2. Step 2: Convert to fraction form
    5,160.93/7,122.20 = 3,170.34/x
  3. Step 3: Cross multiply
    5,160.93x = 7,122.20 × 3,170.34
  4. Step 4: Simplify right side
    5,160.93x = 22,579,779.70
  5. Step 5: Solve for x
    x = 22,579,779.70/5,160.93
  6. Step 6: Final answer
    x = 4,375.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.