Home / 5,040-7,558.56-2,118.24

Finding the Fourth Proportional to 5,040, 7,558.56 and 2,118.24

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Solution

The fourth proportional to 5,040, 7,558.56 and 2,118.24 is: 3,176.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,040 : 7,558.56 = 2,118.24 : x
  2. Step 2: Convert to fraction form
    5,040/7,558.56 = 2,118.24/x
  3. Step 3: Cross multiply
    5,040x = 7,558.56 × 2,118.24
  4. Step 4: Simplify right side
    5,040x = 16,010,844.13
  5. Step 5: Solve for x
    x = 16,010,844.13/5,040
  6. Step 6: Final answer
    x = 3,176.75

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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.