Home / 3,099.60-4,657.91-1,639.78

Finding the Fourth Proportional to 3,099.60, 4,657.91 and 1,639.78

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Solution

The fourth proportional to 3,099.60, 4,657.91 and 1,639.78 is: 2,464.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.60 : 4,657.91 = 1,639.78 : x
  2. Step 2: Convert to fraction form
    3,099.60/4,657.91 = 1,639.78/x
  3. Step 3: Cross multiply
    3,099.60x = 4,657.91 × 1,639.78
  4. Step 4: Simplify right side
    3,099.60x = 7,637,939.46
  5. Step 5: Solve for x
    x = 7,637,939.46/3,099.60
  6. Step 6: Final answer
    x = 2,464.17

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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.