Home / 7,387.36-11,078.18-2,883.88

Finding the Fourth Proportional to 7,387.36, 11,078.18 and 2,883.88

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Solution

The fourth proportional to 7,387.36, 11,078.18 and 2,883.88 is: 4,324.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,387.36 : 11,078.18 = 2,883.88 : x
  2. Step 2: Convert to fraction form
    7,387.36/11,078.18 = 2,883.88/x
  3. Step 3: Cross multiply
    7,387.36x = 11,078.18 × 2,883.88
  4. Step 4: Simplify right side
    7,387.36x = 31,948,141.74
  5. Step 5: Solve for x
    x = 31,948,141.74/7,387.36
  6. Step 6: Final answer
    x = 4,324.70

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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.