Home / 5,648.07-7,789.26-3,656.55

Finding the Fourth Proportional to 5,648.07, 7,789.26 and 3,656.55

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Solution

The fourth proportional to 5,648.07, 7,789.26 and 3,656.55 is: 5,042.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,648.07 : 7,789.26 = 3,656.55 : x
  2. Step 2: Convert to fraction form
    5,648.07/7,789.26 = 3,656.55/x
  3. Step 3: Cross multiply
    5,648.07x = 7,789.26 × 3,656.55
  4. Step 4: Simplify right side
    5,648.07x = 28,481,818.65
  5. Step 5: Solve for x
    x = 28,481,818.65/5,648.07
  6. Step 6: Final answer
    x = 5,042.75

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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.