Home / 3,916.12-5,874.24-1,142.80

Finding the Fourth Proportional to 3,916.12, 5,874.24 and 1,142.80

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Solution

The fourth proportional to 3,916.12, 5,874.24 and 1,142.80 is: 1,714.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.12 : 5,874.24 = 1,142.80 : x
  2. Step 2: Convert to fraction form
    3,916.12/5,874.24 = 1,142.80/x
  3. Step 3: Cross multiply
    3,916.12x = 5,874.24 × 1,142.80
  4. Step 4: Simplify right side
    3,916.12x = 6,713,081.47
  5. Step 5: Solve for x
    x = 6,713,081.47/3,916.12
  6. Step 6: Final answer
    x = 1,714.22

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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.