Home / 5,160.93-7,120.08-2,922.29

Finding the Fourth Proportional to 5,160.93, 7,120.08 and 2,922.29

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Solution

The fourth proportional to 5,160.93, 7,120.08 and 2,922.29 is: 4,031.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.93 : 7,120.08 = 2,922.29 : x
  2. Step 2: Convert to fraction form
    5,160.93/7,120.08 = 2,922.29/x
  3. Step 3: Cross multiply
    5,160.93x = 7,120.08 × 2,922.29
  4. Step 4: Simplify right side
    5,160.93x = 20,806,902.98
  5. Step 5: Solve for x
    x = 20,806,902.98/5,160.93
  6. Step 6: Final answer
    x = 4,031.62

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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.