Home / 5,515.16-8,272.74-2,439.32

Finding the Fourth Proportional to 5,515.16, 8,272.74 and 2,439.32

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Solution

The fourth proportional to 5,515.16, 8,272.74 and 2,439.32 is: 3,658.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.16 : 8,272.74 = 2,439.32 : x
  2. Step 2: Convert to fraction form
    5,515.16/8,272.74 = 2,439.32/x
  3. Step 3: Cross multiply
    5,515.16x = 8,272.74 × 2,439.32
  4. Step 4: Simplify right side
    5,515.16x = 20,179,860.14
  5. Step 5: Solve for x
    x = 20,179,860.14/5,515.16
  6. Step 6: Final answer
    x = 3,658.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.