Home / 5,480-8,212.08-2,359.16

Finding the Fourth Proportional to 5,480, 8,212.08 and 2,359.16

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Solution

The fourth proportional to 5,480, 8,212.08 and 2,359.16 is: 3,535.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480 : 8,212.08 = 2,359.16 : x
  2. Step 2: Convert to fraction form
    5,480/8,212.08 = 2,359.16/x
  3. Step 3: Cross multiply
    5,480x = 8,212.08 × 2,359.16
  4. Step 4: Simplify right side
    5,480x = 19,373,610.65
  5. Step 5: Solve for x
    x = 19,373,610.65/5,480
  6. Step 6: Final answer
    x = 3,535.33

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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.