Home / 5,639.14-7,785.55-3,623.37

Finding the Fourth Proportional to 5,639.14, 7,785.55 and 3,623.37

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Solution

The fourth proportional to 5,639.14, 7,785.55 and 3,623.37 is: 5,002.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.14 : 7,785.55 = 3,623.37 : x
  2. Step 2: Convert to fraction form
    5,639.14/7,785.55 = 3,623.37/x
  3. Step 3: Cross multiply
    5,639.14x = 7,785.55 × 3,623.37
  4. Step 4: Simplify right side
    5,639.14x = 28,209,919.25
  5. Step 5: Solve for x
    x = 28,209,919.25/5,639.14
  6. Step 6: Final answer
    x = 5,002.52

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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.