Home / 5,289.05-7,290.42-4,168.13

Finding the Fourth Proportional to 5,289.05, 7,290.42 and 4,168.13

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Solution

The fourth proportional to 5,289.05, 7,290.42 and 4,168.13 is: 5,745.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.05 : 7,290.42 = 4,168.13 : x
  2. Step 2: Convert to fraction form
    5,289.05/7,290.42 = 4,168.13/x
  3. Step 3: Cross multiply
    5,289.05x = 7,290.42 × 4,168.13
  4. Step 4: Simplify right side
    5,289.05x = 30,387,418.31
  5. Step 5: Solve for x
    x = 30,387,418.31/5,289.05
  6. Step 6: Final answer
    x = 5,745.35

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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.