Home / 5,278.13-7,283.82-2,920.43

Finding the Fourth Proportional to 5,278.13, 7,283.82 and 2,920.43

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Solution

The fourth proportional to 5,278.13, 7,283.82 and 2,920.43 is: 4,030.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.13 : 7,283.82 = 2,920.43 : x
  2. Step 2: Convert to fraction form
    5,278.13/7,283.82 = 2,920.43/x
  3. Step 3: Cross multiply
    5,278.13x = 7,283.82 × 2,920.43
  4. Step 4: Simplify right side
    5,278.13x = 21,271,886.44
  5. Step 5: Solve for x
    x = 21,271,886.44/5,278.13
  6. Step 6: Final answer
    x = 4,030.19

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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.