Home / 3,378.46-4,661.88-1,886.32

Finding the Fourth Proportional to 3,378.46, 4,661.88 and 1,886.32

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Solution

The fourth proportional to 3,378.46, 4,661.88 and 1,886.32 is: 2,602.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.46 : 4,661.88 = 1,886.32 : x
  2. Step 2: Convert to fraction form
    3,378.46/4,661.88 = 1,886.32/x
  3. Step 3: Cross multiply
    3,378.46x = 4,661.88 × 1,886.32
  4. Step 4: Simplify right side
    3,378.46x = 8,793,797.48
  5. Step 5: Solve for x
    x = 8,793,797.48/3,378.46
  6. Step 6: Final answer
    x = 2,602.90

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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.