Home / 5,236.78-7,226.91-2,878.93

Finding the Fourth Proportional to 5,236.78, 7,226.91 and 2,878.93

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Solution

The fourth proportional to 5,236.78, 7,226.91 and 2,878.93 is: 3,973.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,236.78 : 7,226.91 = 2,878.93 : x
  2. Step 2: Convert to fraction form
    5,236.78/7,226.91 = 2,878.93/x
  3. Step 3: Cross multiply
    5,236.78x = 7,226.91 × 2,878.93
  4. Step 4: Simplify right side
    5,236.78x = 20,805,768.01
  5. Step 5: Solve for x
    x = 20,805,768.01/5,236.78
  6. Step 6: Final answer
    x = 3,973.01

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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.