Home / 2,815.48-4,227.45-2,206.72

Finding the Fourth Proportional to 2,815.48, 4,227.45 and 2,206.72

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Solution

The fourth proportional to 2,815.48, 4,227.45 and 2,206.72 is: 3,313.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.48 : 4,227.45 = 2,206.72 : x
  2. Step 2: Convert to fraction form
    2,815.48/4,227.45 = 2,206.72/x
  3. Step 3: Cross multiply
    2,815.48x = 4,227.45 × 2,206.72
  4. Step 4: Simplify right side
    2,815.48x = 9,328,798.46
  5. Step 5: Solve for x
    x = 9,328,798.46/2,815.48
  6. Step 6: Final answer
    x = 3,313.40

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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.