Home / 5,011.18-7,509.58-2,815.29

Finding the Fourth Proportional to 5,011.18, 7,509.58 and 2,815.29

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Solution

The fourth proportional to 5,011.18, 7,509.58 and 2,815.29 is: 4,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,011.18 : 7,509.58 = 2,815.29 : x
  2. Step 2: Convert to fraction form
    5,011.18/7,509.58 = 2,815.29/x
  3. Step 3: Cross multiply
    5,011.18x = 7,509.58 × 2,815.29
  4. Step 4: Simplify right side
    5,011.18x = 21,141,645.48
  5. Step 5: Solve for x
    x = 21,141,645.48/5,011.18
  6. Step 6: Final answer
    x = 4,218.90

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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.