Home / 4,990.28-6,886.23-3,104.60

Finding the Fourth Proportional to 4,990.28, 6,886.23 and 3,104.60

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Solution

The fourth proportional to 4,990.28, 6,886.23 and 3,104.60 is: 4,284.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.28 : 6,886.23 = 3,104.60 : x
  2. Step 2: Convert to fraction form
    4,990.28/6,886.23 = 3,104.60/x
  3. Step 3: Cross multiply
    4,990.28x = 6,886.23 × 3,104.60
  4. Step 4: Simplify right side
    4,990.28x = 21,378,989.66
  5. Step 5: Solve for x
    x = 21,378,989.66/4,990.28
  6. Step 6: Final answer
    x = 4,284.13

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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.