Home / 1,916.42-2,646.94-1,589.18

Finding the Fourth Proportional to 1,916.42, 2,646.94 and 1,589.18

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Solution

The fourth proportional to 1,916.42, 2,646.94 and 1,589.18 is: 2,194.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.42 : 2,646.94 = 1,589.18 : x
  2. Step 2: Convert to fraction form
    1,916.42/2,646.94 = 1,589.18/x
  3. Step 3: Cross multiply
    1,916.42x = 2,646.94 × 1,589.18
  4. Step 4: Simplify right side
    1,916.42x = 4,206,464.11
  5. Step 5: Solve for x
    x = 4,206,464.11/1,916.42
  6. Step 6: Final answer
    x = 2,194.96

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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.