Home / 3,916.05-5,403.56-2,343.75

Finding the Fourth Proportional to 3,916.05, 5,403.56 and 2,343.75

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Solution

The fourth proportional to 3,916.05, 5,403.56 and 2,343.75 is: 3,234.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.05 : 5,403.56 = 2,343.75 : x
  2. Step 2: Convert to fraction form
    3,916.05/5,403.56 = 2,343.75/x
  3. Step 3: Cross multiply
    3,916.05x = 5,403.56 × 2,343.75
  4. Step 4: Simplify right side
    3,916.05x = 12,664,582.03
  5. Step 5: Solve for x
    x = 12,664,582.03/3,916.05
  6. Step 6: Final answer
    x = 3,234.02

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1.5x scale

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.