Home / 3,579.60-4,940.40-2,088

Finding the Fourth Proportional to 3,579.60, 4,940.40 and 2,088

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Solution

The fourth proportional to 3,579.60, 4,940.40 and 2,088 is: 2,881.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.60 : 4,940.40 = 2,088 : x
  2. Step 2: Convert to fraction form
    3,579.60/4,940.40 = 2,088/x
  3. Step 3: Cross multiply
    3,579.60x = 4,940.40 × 2,088
  4. Step 4: Simplify right side
    3,579.60x = 10,315,555.20
  5. Step 5: Solve for x
    x = 10,315,555.20/3,579.60
  6. Step 6: Final answer
    x = 2,881.76

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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.