Home / 5,275.87-7,280.21-2,917.96

Finding the Fourth Proportional to 5,275.87, 7,280.21 and 2,917.96

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Solution

The fourth proportional to 5,275.87, 7,280.21 and 2,917.96 is: 4,026.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.87 : 7,280.21 = 2,917.96 : x
  2. Step 2: Convert to fraction form
    5,275.87/7,280.21 = 2,917.96/x
  3. Step 3: Cross multiply
    5,275.87x = 7,280.21 × 2,917.96
  4. Step 4: Simplify right side
    5,275.87x = 21,243,310.58
  5. Step 5: Solve for x
    x = 21,243,310.58/5,275.87
  6. Step 6: Final answer
    x = 4,026.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.