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Finding the Fourth Proportional to 7,260.55, 10,891.50 and 2,580.10

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Solution

The fourth proportional to 7,260.55, 10,891.50 and 2,580.10 is: 3,870.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,260.55 : 10,891.50 = 2,580.10 : x
  2. Step 2: Convert to fraction form
    7,260.55/10,891.50 = 2,580.10/x
  3. Step 3: Cross multiply
    7,260.55x = 10,891.50 × 2,580.10
  4. Step 4: Simplify right side
    7,260.55x = 28,101,159.15
  5. Step 5: Solve for x
    x = 28,101,159.15/7,260.55
  6. Step 6: Final answer
    x = 3,870.39

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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.