Home / 5,130.36-7,691.49-2,009.84

Finding the Fourth Proportional to 5,130.36, 7,691.49 and 2,009.84

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Solution

The fourth proportional to 5,130.36, 7,691.49 and 2,009.84 is: 3,013.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.36 : 7,691.49 = 2,009.84 : x
  2. Step 2: Convert to fraction form
    5,130.36/7,691.49 = 2,009.84/x
  3. Step 3: Cross multiply
    5,130.36x = 7,691.49 × 2,009.84
  4. Step 4: Simplify right side
    5,130.36x = 15,458,625.80
  5. Step 5: Solve for x
    x = 15,458,625.80/5,130.36
  6. Step 6: Final answer
    x = 3,013.17

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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.