Home / 5,246.05-7,239.40-2,977.81

Finding the Fourth Proportional to 5,246.05, 7,239.40 and 2,977.81

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Solution

The fourth proportional to 5,246.05, 7,239.40 and 2,977.81 is: 4,109.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,246.05 : 7,239.40 = 2,977.81 : x
  2. Step 2: Convert to fraction form
    5,246.05/7,239.40 = 2,977.81/x
  3. Step 3: Cross multiply
    5,246.05x = 7,239.40 × 2,977.81
  4. Step 4: Simplify right side
    5,246.05x = 21,557,514.07
  5. Step 5: Solve for x
    x = 21,557,514.07/5,246.05
  6. Step 6: Final answer
    x = 4,109.29

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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.