Home / 3,579.81-4,937.40-2,321.18

Finding the Fourth Proportional to 3,579.81, 4,937.40 and 2,321.18

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Solution

The fourth proportional to 3,579.81, 4,937.40 and 2,321.18 is: 3,201.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.81 : 4,937.40 = 2,321.18 : x
  2. Step 2: Convert to fraction form
    3,579.81/4,937.40 = 2,321.18/x
  3. Step 3: Cross multiply
    3,579.81x = 4,937.40 × 2,321.18
  4. Step 4: Simplify right side
    3,579.81x = 11,460,569.45
  5. Step 5: Solve for x
    x = 11,460,569.45/3,579.81
  6. Step 6: Final answer
    x = 3,201.45

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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.