Home / 2,176.31-3,263.85-877.47

Finding the Fourth Proportional to 2,176.31, 3,263.85 and 877.47

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Solution

The fourth proportional to 2,176.31, 3,263.85 and 877.47 is: 1,315.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.31 : 3,263.85 = 877.47 : x
  2. Step 2: Convert to fraction form
    2,176.31/3,263.85 = 877.47/x
  3. Step 3: Cross multiply
    2,176.31x = 3,263.85 × 877.47
  4. Step 4: Simplify right side
    2,176.31x = 2,863,930.46
  5. Step 5: Solve for x
    x = 2,863,930.46/2,176.31
  6. Step 6: Final answer
    x = 1,315.96

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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.