Home / 7,938.30-10,949.99-5,249.51

Finding the Fourth Proportional to 7,938.30, 10,949.99 and 5,249.51

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Solution

The fourth proportional to 7,938.30, 10,949.99 and 5,249.51 is: 7,241.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.30 : 10,949.99 = 5,249.51 : x
  2. Step 2: Convert to fraction form
    7,938.30/10,949.99 = 5,249.51/x
  3. Step 3: Cross multiply
    7,938.30x = 10,949.99 × 5,249.51
  4. Step 4: Simplify right side
    7,938.30x = 57,482,001.01
  5. Step 5: Solve for x
    x = 57,482,001.01/7,938.30
  6. Step 6: Final answer
    x = 7,241.10

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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.