Home / 5,275.75-7,280.85-2,917.84

Finding the Fourth Proportional to 5,275.75, 7,280.85 and 2,917.84

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Solution

The fourth proportional to 5,275.75, 7,280.85 and 2,917.84 is: 4,026.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.75 : 7,280.85 = 2,917.84 : x
  2. Step 2: Convert to fraction form
    5,275.75/7,280.85 = 2,917.84/x
  3. Step 3: Cross multiply
    5,275.75x = 7,280.85 × 2,917.84
  4. Step 4: Simplify right side
    5,275.75x = 21,244,355.36
  5. Step 5: Solve for x
    x = 21,244,355.36/5,275.75
  6. Step 6: Final answer
    x = 4,026.79

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1.5x scale

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.