Home / 4,278.46-6,414.95-1,781.38

Finding the Fourth Proportional to 4,278.46, 6,414.95 and 1,781.38

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Solution

The fourth proportional to 4,278.46, 6,414.95 and 1,781.38 is: 2,670.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.46 : 6,414.95 = 1,781.38 : x
  2. Step 2: Convert to fraction form
    4,278.46/6,414.95 = 1,781.38/x
  3. Step 3: Cross multiply
    4,278.46x = 6,414.95 × 1,781.38
  4. Step 4: Simplify right side
    4,278.46x = 11,427,457.06
  5. Step 5: Solve for x
    x = 11,427,457.06/4,278.46
  6. Step 6: Final answer
    x = 2,670.93

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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.