Home / 2,847.61-3,928.66-1,785.41

Finding the Fourth Proportional to 2,847.61, 3,928.66 and 1,785.41

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Solution

The fourth proportional to 2,847.61, 3,928.66 and 1,785.41 is: 2,463.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.61 : 3,928.66 = 1,785.41 : x
  2. Step 2: Convert to fraction form
    2,847.61/3,928.66 = 1,785.41/x
  3. Step 3: Cross multiply
    2,847.61x = 3,928.66 × 1,785.41
  4. Step 4: Simplify right side
    2,847.61x = 7,014,281.57
  5. Step 5: Solve for x
    x = 7,014,281.57/2,847.61
  6. Step 6: Final answer
    x = 2,463.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.