Home / 5,320.37-7,339.91-3,431.54

Finding the Fourth Proportional to 5,320.37, 7,339.91 and 3,431.54

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Solution

The fourth proportional to 5,320.37, 7,339.91 and 3,431.54 is: 4,734.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.37 : 7,339.91 = 3,431.54 : x
  2. Step 2: Convert to fraction form
    5,320.37/7,339.91 = 3,431.54/x
  3. Step 3: Cross multiply
    5,320.37x = 7,339.91 × 3,431.54
  4. Step 4: Simplify right side
    5,320.37x = 25,187,140.90
  5. Step 5: Solve for x
    x = 25,187,140.90/5,320.37
  6. Step 6: Final answer
    x = 4,734.10

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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.