Home / 7,933.40-11,899.15-2,090.47

Finding the Fourth Proportional to 7,933.40, 11,899.15 and 2,090.47

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Solution

The fourth proportional to 7,933.40, 11,899.15 and 2,090.47 is: 3,135.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,933.40 : 11,899.15 = 2,090.47 : x
  2. Step 2: Convert to fraction form
    7,933.40/11,899.15 = 2,090.47/x
  3. Step 3: Cross multiply
    7,933.40x = 11,899.15 × 2,090.47
  4. Step 4: Simplify right side
    7,933.40x = 24,874,816.10
  5. Step 5: Solve for x
    x = 24,874,816.10/7,933.40
  6. Step 6: Final answer
    x = 3,135.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.