Home / 5,578.07-7,697.67-3,220.16

Finding the Fourth Proportional to 5,578.07, 7,697.67 and 3,220.16

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Solution

The fourth proportional to 5,578.07, 7,697.67 and 3,220.16 is: 4,443.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,578.07 : 7,697.67 = 3,220.16 : x
  2. Step 2: Convert to fraction form
    5,578.07/7,697.67 = 3,220.16/x
  3. Step 3: Cross multiply
    5,578.07x = 7,697.67 × 3,220.16
  4. Step 4: Simplify right side
    5,578.07x = 24,787,678.46
  5. Step 5: Solve for x
    x = 24,787,678.46/5,578.07
  6. Step 6: Final answer
    x = 4,443.78

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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.