Home / 5,712.39-7,886.46-4,284.56

Finding the Fourth Proportional to 5,712.39, 7,886.46 and 4,284.56

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Solution

The fourth proportional to 5,712.39, 7,886.46 and 4,284.56 is: 5,915.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712.39 : 7,886.46 = 4,284.56 : x
  2. Step 2: Convert to fraction form
    5,712.39/7,886.46 = 4,284.56/x
  3. Step 3: Cross multiply
    5,712.39x = 7,886.46 × 4,284.56
  4. Step 4: Simplify right side
    5,712.39x = 33,790,046.84
  5. Step 5: Solve for x
    x = 33,790,046.84/5,712.39
  6. Step 6: Final answer
    x = 5,915.22

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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.