Home / 5,189.25-7,159.11-2,920.07

Finding the Fourth Proportional to 5,189.25, 7,159.11 and 2,920.07

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Solution

The fourth proportional to 5,189.25, 7,159.11 and 2,920.07 is: 4,028.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.25 : 7,159.11 = 2,920.07 : x
  2. Step 2: Convert to fraction form
    5,189.25/7,159.11 = 2,920.07/x
  3. Step 3: Cross multiply
    5,189.25x = 7,159.11 × 2,920.07
  4. Step 4: Simplify right side
    5,189.25x = 20,905,102.34
  5. Step 5: Solve for x
    x = 20,905,102.34/5,189.25
  6. Step 6: Final answer
    x = 4,028.54

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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.