Home / 5,289.60-7,924.32-3,285.12

Finding the Fourth Proportional to 5,289.60, 7,924.32 and 3,285.12

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Solution

The fourth proportional to 5,289.60, 7,924.32 and 3,285.12 is: 4,921.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.60 : 7,924.32 = 3,285.12 : x
  2. Step 2: Convert to fraction form
    5,289.60/7,924.32 = 3,285.12/x
  3. Step 3: Cross multiply
    5,289.60x = 7,924.32 × 3,285.12
  4. Step 4: Simplify right side
    5,289.60x = 26,032,342.12
  5. Step 5: Solve for x
    x = 26,032,342.12/5,289.60
  6. Step 6: Final answer
    x = 4,921.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.