Home / 4,724.48-7,078.16-2,642

Finding the Fourth Proportional to 4,724.48, 7,078.16 and 2,642

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Solution

The fourth proportional to 4,724.48, 7,078.16 and 2,642 is: 3,958.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,724.48 : 7,078.16 = 2,642 : x
  2. Step 2: Convert to fraction form
    4,724.48/7,078.16 = 2,642/x
  3. Step 3: Cross multiply
    4,724.48x = 7,078.16 × 2,642
  4. Step 4: Simplify right side
    4,724.48x = 18,700,498.72
  5. Step 5: Solve for x
    x = 18,700,498.72/4,724.48
  6. Step 6: Final answer
    x = 3,958.21

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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.