Home / 5,590.89-7,715.39-3,072.87

Finding the Fourth Proportional to 5,590.89, 7,715.39 and 3,072.87

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Solution

The fourth proportional to 5,590.89, 7,715.39 and 3,072.87 is: 4,240.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590.89 : 7,715.39 = 3,072.87 : x
  2. Step 2: Convert to fraction form
    5,590.89/7,715.39 = 3,072.87/x
  3. Step 3: Cross multiply
    5,590.89x = 7,715.39 × 3,072.87
  4. Step 4: Simplify right side
    5,590.89x = 23,708,375.10
  5. Step 5: Solve for x
    x = 23,708,375.10/5,590.89
  6. Step 6: Final answer
    x = 4,240.54

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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.