Home / 3,900.74-5,382.51-2,328.50

Finding the Fourth Proportional to 3,900.74, 5,382.51 and 2,328.50

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Solution

The fourth proportional to 3,900.74, 5,382.51 and 2,328.50 is: 3,213.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.74 : 5,382.51 = 2,328.50 : x
  2. Step 2: Convert to fraction form
    3,900.74/5,382.51 = 2,328.50/x
  3. Step 3: Cross multiply
    3,900.74x = 5,382.51 × 2,328.50
  4. Step 4: Simplify right side
    3,900.74x = 12,533,174.54
  5. Step 5: Solve for x
    x = 12,533,174.54/3,900.74
  6. Step 6: Final answer
    x = 3,213.02

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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.