Home / 2,989.05-4,480.19-1,505.92

Finding the Fourth Proportional to 2,989.05, 4,480.19 and 1,505.92

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Solution

The fourth proportional to 2,989.05, 4,480.19 and 1,505.92 is: 2,257.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.05 : 4,480.19 = 1,505.92 : x
  2. Step 2: Convert to fraction form
    2,989.05/4,480.19 = 1,505.92/x
  3. Step 3: Cross multiply
    2,989.05x = 4,480.19 × 1,505.92
  4. Step 4: Simplify right side
    2,989.05x = 6,746,807.72
  5. Step 5: Solve for x
    x = 6,746,807.72/2,989.05
  6. Step 6: Final answer
    x = 2,257.17

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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.