Home / 5,638.30-7,780.55-3,514.19

Finding the Fourth Proportional to 5,638.30, 7,780.55 and 3,514.19

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Solution

The fourth proportional to 5,638.30, 7,780.55 and 3,514.19 is: 4,849.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638.30 : 7,780.55 = 3,514.19 : x
  2. Step 2: Convert to fraction form
    5,638.30/7,780.55 = 3,514.19/x
  3. Step 3: Cross multiply
    5,638.30x = 7,780.55 × 3,514.19
  4. Step 4: Simplify right side
    5,638.30x = 27,342,274.53
  5. Step 5: Solve for x
    x = 27,342,274.53/5,638.30
  6. Step 6: Final answer
    x = 4,849.38

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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.