Home / 3,916.60-5,864.10-3,722.20

Finding the Fourth Proportional to 3,916.60, 5,864.10 and 3,722.20

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Solution

The fourth proportional to 3,916.60, 5,864.10 and 3,722.20 is: 5,573.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.60 : 5,864.10 = 3,722.20 : x
  2. Step 2: Convert to fraction form
    3,916.60/5,864.10 = 3,722.20/x
  3. Step 3: Cross multiply
    3,916.60x = 5,864.10 × 3,722.20
  4. Step 4: Simplify right side
    3,916.60x = 21,827,353.02
  5. Step 5: Solve for x
    x = 21,827,353.02/3,916.60
  6. Step 6: Final answer
    x = 5,573.04

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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.