Home / 3,621.34-5,429.40-2,916.64

Finding the Fourth Proportional to 3,621.34, 5,429.40 and 2,916.64

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Solution

The fourth proportional to 3,621.34, 5,429.40 and 2,916.64 is: 4,372.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.34 : 5,429.40 = 2,916.64 : x
  2. Step 2: Convert to fraction form
    3,621.34/5,429.40 = 2,916.64/x
  3. Step 3: Cross multiply
    3,621.34x = 5,429.40 × 2,916.64
  4. Step 4: Simplify right side
    3,621.34x = 15,835,605.22
  5. Step 5: Solve for x
    x = 15,835,605.22/3,621.34
  6. Step 6: Final answer
    x = 4,372.86

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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.