Home / 5,276.80-7,282.11-2,919.07

Finding the Fourth Proportional to 5,276.80, 7,282.11 and 2,919.07

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Solution

The fourth proportional to 5,276.80, 7,282.11 and 2,919.07 is: 4,028.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.80 : 7,282.11 = 2,919.07 : x
  2. Step 2: Convert to fraction form
    5,276.80/7,282.11 = 2,919.07/x
  3. Step 3: Cross multiply
    5,276.80x = 7,282.11 × 2,919.07
  4. Step 4: Simplify right side
    5,276.80x = 21,256,988.84
  5. Step 5: Solve for x
    x = 21,256,988.84/5,276.80
  6. Step 6: Final answer
    x = 4,028.39

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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.