Home / 3,378.28-4,661.83-1,886.29

Finding the Fourth Proportional to 3,378.28, 4,661.83 and 1,886.29

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Solution

The fourth proportional to 3,378.28, 4,661.83 and 1,886.29 is: 2,602.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.28 : 4,661.83 = 1,886.29 : x
  2. Step 2: Convert to fraction form
    3,378.28/4,661.83 = 1,886.29/x
  3. Step 3: Cross multiply
    3,378.28x = 4,661.83 × 1,886.29
  4. Step 4: Simplify right side
    3,378.28x = 8,793,574.97
  5. Step 5: Solve for x
    x = 8,793,574.97/3,378.28
  6. Step 6: Final answer
    x = 2,602.97

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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.