Home / 5,276.87-7,911.19-2,643.02

Finding the Fourth Proportional to 5,276.87, 7,911.19 and 2,643.02

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Solution

The fourth proportional to 5,276.87, 7,911.19 and 2,643.02 is: 3,962.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.87 : 7,911.19 = 2,643.02 : x
  2. Step 2: Convert to fraction form
    5,276.87/7,911.19 = 2,643.02/x
  3. Step 3: Cross multiply
    5,276.87x = 7,911.19 × 2,643.02
  4. Step 4: Simplify right side
    5,276.87x = 20,909,433.39
  5. Step 5: Solve for x
    x = 20,909,433.39/5,276.87
  6. Step 6: Final answer
    x = 3,962.47

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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.