Home / 5,320.20-7,342.74-3,225.36

Finding the Fourth Proportional to 5,320.20, 7,342.74 and 3,225.36

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Solution

The fourth proportional to 5,320.20, 7,342.74 and 3,225.36 is: 4,451.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.20 : 7,342.74 = 3,225.36 : x
  2. Step 2: Convert to fraction form
    5,320.20/7,342.74 = 3,225.36/x
  3. Step 3: Cross multiply
    5,320.20x = 7,342.74 × 3,225.36
  4. Step 4: Simplify right side
    5,320.20x = 23,682,979.89
  5. Step 5: Solve for x
    x = 23,682,979.89/5,320.20
  6. Step 6: Final answer
    x = 4,451.52

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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.