Home / 4,989.24-7,479.81-1,867.50

Finding the Fourth Proportional to 4,989.24, 7,479.81 and 1,867.50

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Solution

The fourth proportional to 4,989.24, 7,479.81 and 1,867.50 is: 2,799.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.24 : 7,479.81 = 1,867.50 : x
  2. Step 2: Convert to fraction form
    4,989.24/7,479.81 = 1,867.50/x
  3. Step 3: Cross multiply
    4,989.24x = 7,479.81 × 1,867.50
  4. Step 4: Simplify right side
    4,989.24x = 13,968,532.33
  5. Step 5: Solve for x
    x = 13,968,532.33/4,989.24
  6. Step 6: Final answer
    x = 2,799.73

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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.