Home / 5,236.31-7,226.16-2,878.50

Finding the Fourth Proportional to 5,236.31, 7,226.16 and 2,878.50

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Solution

The fourth proportional to 5,236.31, 7,226.16 and 2,878.50 is: 3,972.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,236.31 : 7,226.16 = 2,878.50 : x
  2. Step 2: Convert to fraction form
    5,236.31/7,226.16 = 2,878.50/x
  3. Step 3: Cross multiply
    5,236.31x = 7,226.16 × 2,878.50
  4. Step 4: Simplify right side
    5,236.31x = 20,800,534.06
  5. Step 5: Solve for x
    x = 20,800,534.06/5,236.31
  6. Step 6: Final answer
    x = 3,972.36

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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.