Home / 4,989.48-7,479.42-2,216.52

Finding the Fourth Proportional to 4,989.48, 7,479.42 and 2,216.52

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Solution

The fourth proportional to 4,989.48, 7,479.42 and 2,216.52 is: 3,322.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.48 : 7,479.42 = 2,216.52 : x
  2. Step 2: Convert to fraction form
    4,989.48/7,479.42 = 2,216.52/x
  3. Step 3: Cross multiply
    4,989.48x = 7,479.42 × 2,216.52
  4. Step 4: Simplify right side
    4,989.48x = 16,578,284.02
  5. Step 5: Solve for x
    x = 16,578,284.02/4,989.48
  6. Step 6: Final answer
    x = 3,322.65

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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.