Home / 5,399.78-7,452.48-3,162.35

Finding the Fourth Proportional to 5,399.78, 7,452.48 and 3,162.35

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Solution

The fourth proportional to 5,399.78, 7,452.48 and 3,162.35 is: 4,364.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.78 : 7,452.48 = 3,162.35 : x
  2. Step 2: Convert to fraction form
    5,399.78/7,452.48 = 3,162.35/x
  3. Step 3: Cross multiply
    5,399.78x = 7,452.48 × 3,162.35
  4. Step 4: Simplify right side
    5,399.78x = 23,567,312.87
  5. Step 5: Solve for x
    x = 23,567,312.87/5,399.78
  6. Step 6: Final answer
    x = 4,364.50

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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.