Home / 2,381.12-3,565.47-1,916.36

Finding the Fourth Proportional to 2,381.12, 3,565.47 and 1,916.36

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Solution

The fourth proportional to 2,381.12, 3,565.47 and 1,916.36 is: 2,869.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.12 : 3,565.47 = 1,916.36 : x
  2. Step 2: Convert to fraction form
    2,381.12/3,565.47 = 1,916.36/x
  3. Step 3: Cross multiply
    2,381.12x = 3,565.47 × 1,916.36
  4. Step 4: Simplify right side
    2,381.12x = 6,832,724.09
  5. Step 5: Solve for x
    x = 6,832,724.09/2,381.12
  6. Step 6: Final answer
    x = 2,869.54

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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.