Home / 5,160.16-7,121.27-2,922.13

Finding the Fourth Proportional to 5,160.16, 7,121.27 and 2,922.13

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Solution

The fourth proportional to 5,160.16, 7,121.27 and 2,922.13 is: 4,032.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.16 : 7,121.27 = 2,922.13 : x
  2. Step 2: Convert to fraction form
    5,160.16/7,121.27 = 2,922.13/x
  3. Step 3: Cross multiply
    5,160.16x = 7,121.27 × 2,922.13
  4. Step 4: Simplify right side
    5,160.16x = 20,809,226.49
  5. Step 5: Solve for x
    x = 20,809,226.49/5,160.16
  6. Step 6: Final answer
    x = 4,032.67

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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.