Home / 5,276.07-7,280.11-2,917.75

Finding the Fourth Proportional to 5,276.07, 7,280.11 and 2,917.75

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Solution

The fourth proportional to 5,276.07, 7,280.11 and 2,917.75 is: 4,026.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.07 : 7,280.11 = 2,917.75 : x
  2. Step 2: Convert to fraction form
    5,276.07/7,280.11 = 2,917.75/x
  3. Step 3: Cross multiply
    5,276.07x = 7,280.11 × 2,917.75
  4. Step 4: Simplify right side
    5,276.07x = 21,241,540.95
  5. Step 5: Solve for x
    x = 21,241,540.95/5,276.07
  6. Step 6: Final answer
    x = 4,026.02

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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.