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Finding the Fourth Proportional to 5,260.76, 7,895.75 and 2,140.75

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Solution

The fourth proportional to 5,260.76, 7,895.75 and 2,140.75 is: 3,213.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,260.76 : 7,895.75 = 2,140.75 : x
  2. Step 2: Convert to fraction form
    5,260.76/7,895.75 = 2,140.75/x
  3. Step 3: Cross multiply
    5,260.76x = 7,895.75 × 2,140.75
  4. Step 4: Simplify right side
    5,260.76x = 16,902,866.25
  5. Step 5: Solve for x
    x = 16,902,866.25/5,260.76
  6. Step 6: Final answer
    x = 3,213.01

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1.5x scale

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.