Home / 3,916.34-5,869.02-2,815.52

Finding the Fourth Proportional to 3,916.34, 5,869.02 and 2,815.52

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Solution

The fourth proportional to 3,916.34, 5,869.02 and 2,815.52 is: 4,219.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.34 : 5,869.02 = 2,815.52 : x
  2. Step 2: Convert to fraction form
    3,916.34/5,869.02 = 2,815.52/x
  3. Step 3: Cross multiply
    3,916.34x = 5,869.02 × 2,815.52
  4. Step 4: Simplify right side
    3,916.34x = 16,524,343.19
  5. Step 5: Solve for x
    x = 16,524,343.19/3,916.34
  6. Step 6: Final answer
    x = 4,219.33

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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.