Home / 5,878.07-8,112.11-3,885.13

Finding the Fourth Proportional to 5,878.07, 8,112.11 and 3,885.13

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Solution

The fourth proportional to 5,878.07, 8,112.11 and 3,885.13 is: 5,361.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,878.07 : 8,112.11 = 3,885.13 : x
  2. Step 2: Convert to fraction form
    5,878.07/8,112.11 = 3,885.13/x
  3. Step 3: Cross multiply
    5,878.07x = 8,112.11 × 3,885.13
  4. Step 4: Simplify right side
    5,878.07x = 31,516,601.92
  5. Step 5: Solve for x
    x = 31,516,601.92/5,878.07
  6. Step 6: Final answer
    x = 5,361.73

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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.