Home / 2,864.38-4,296.42-916.32

Finding the Fourth Proportional to 2,864.38, 4,296.42 and 916.32

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Solution

The fourth proportional to 2,864.38, 4,296.42 and 916.32 is: 1,374.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.38 : 4,296.42 = 916.32 : x
  2. Step 2: Convert to fraction form
    2,864.38/4,296.42 = 916.32/x
  3. Step 3: Cross multiply
    2,864.38x = 4,296.42 × 916.32
  4. Step 4: Simplify right side
    2,864.38x = 3,936,895.57
  5. Step 5: Solve for x
    x = 3,936,895.57/2,864.38
  6. Step 6: Final answer
    x = 1,374.43

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1.5x scale

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.