Home / 5,305.30-7,320.04-3,181.48

Finding the Fourth Proportional to 5,305.30, 7,320.04 and 3,181.48

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Solution

The fourth proportional to 5,305.30, 7,320.04 and 3,181.48 is: 4,389.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,305.30 : 7,320.04 = 3,181.48 : x
  2. Step 2: Convert to fraction form
    5,305.30/7,320.04 = 3,181.48/x
  3. Step 3: Cross multiply
    5,305.30x = 7,320.04 × 3,181.48
  4. Step 4: Simplify right side
    5,305.30x = 23,288,560.86
  5. Step 5: Solve for x
    x = 23,288,560.86/5,305.30
  6. Step 6: Final answer
    x = 4,389.68

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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.