Home / 4,193.10-5,781.74-2,678.63

Finding the Fourth Proportional to 4,193.10, 5,781.74 and 2,678.63

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Solution

The fourth proportional to 4,193.10, 5,781.74 and 2,678.63 is: 3,693.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,193.10 : 5,781.74 = 2,678.63 : x
  2. Step 2: Convert to fraction form
    4,193.10/5,781.74 = 2,678.63/x
  3. Step 3: Cross multiply
    4,193.10x = 5,781.74 × 2,678.63
  4. Step 4: Simplify right side
    4,193.10x = 15,487,099.91
  5. Step 5: Solve for x
    x = 15,487,099.91/4,193.10
  6. Step 6: Final answer
    x = 3,693.47

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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.