Home / 5,160.26-7,121.34-2,922.10

Finding the Fourth Proportional to 5,160.26, 7,121.34 and 2,922.10

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Solution

The fourth proportional to 5,160.26, 7,121.34 and 2,922.10 is: 4,032.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.26 : 7,121.34 = 2,922.10 : x
  2. Step 2: Convert to fraction form
    5,160.26/7,121.34 = 2,922.10/x
  3. Step 3: Cross multiply
    5,160.26x = 7,121.34 × 2,922.10
  4. Step 4: Simplify right side
    5,160.26x = 20,809,267.61
  5. Step 5: Solve for x
    x = 20,809,267.61/5,160.26
  6. Step 6: Final answer
    x = 4,032.60

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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.