Home / 7,155.48-10,731.60-3,261

Finding the Fourth Proportional to 7,155.48, 10,731.60 and 3,261

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Solution

The fourth proportional to 7,155.48, 10,731.60 and 3,261 is: 4,890.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.48 : 10,731.60 = 3,261 : x
  2. Step 2: Convert to fraction form
    7,155.48/10,731.60 = 3,261/x
  3. Step 3: Cross multiply
    7,155.48x = 10,731.60 × 3,261
  4. Step 4: Simplify right side
    7,155.48x = 34,995,747.60
  5. Step 5: Solve for x
    x = 34,995,747.60/7,155.48
  6. Step 6: Final answer
    x = 4,890.76

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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.