Home / 3,330.13-4,995.16-864.95

Finding the Fourth Proportional to 3,330.13, 4,995.16 and 864.95

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Solution

The fourth proportional to 3,330.13, 4,995.16 and 864.95 is: 1,297.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.13 : 4,995.16 = 864.95 : x
  2. Step 2: Convert to fraction form
    3,330.13/4,995.16 = 864.95/x
  3. Step 3: Cross multiply
    3,330.13x = 4,995.16 × 864.95
  4. Step 4: Simplify right side
    3,330.13x = 4,320,563.64
  5. Step 5: Solve for x
    x = 4,320,563.64/3,330.13
  6. Step 6: Final answer
    x = 1,297.42

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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.