Home / 7,488.15-11,228.97-3,977.40

Finding the Fourth Proportional to 7,488.15, 11,228.97 and 3,977.40

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Solution

The fourth proportional to 7,488.15, 11,228.97 and 3,977.40 is: 5,964.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,488.15 : 11,228.97 = 3,977.40 : x
  2. Step 2: Convert to fraction form
    7,488.15/11,228.97 = 3,977.40/x
  3. Step 3: Cross multiply
    7,488.15x = 11,228.97 × 3,977.40
  4. Step 4: Simplify right side
    7,488.15x = 44,662,105.28
  5. Step 5: Solve for x
    x = 44,662,105.28/7,488.15
  6. Step 6: Final answer
    x = 5,964.37

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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.