Home / 4,005.16-5,515.58-3,993.02

Finding the Fourth Proportional to 4,005.16, 5,515.58 and 3,993.02

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Solution

The fourth proportional to 4,005.16, 5,515.58 and 3,993.02 is: 5,498.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,005.16 : 5,515.58 = 3,993.02 : x
  2. Step 2: Convert to fraction form
    4,005.16/5,515.58 = 3,993.02/x
  3. Step 3: Cross multiply
    4,005.16x = 5,515.58 × 3,993.02
  4. Step 4: Simplify right side
    4,005.16x = 22,023,821.25
  5. Step 5: Solve for x
    x = 22,023,821.25/4,005.16
  6. Step 6: Final answer
    x = 5,498.86

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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.