Home / 3,378.32-4,661.92-1,886.24

Finding the Fourth Proportional to 3,378.32, 4,661.92 and 1,886.24

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Solution

The fourth proportional to 3,378.32, 4,661.92 and 1,886.24 is: 2,602.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.32 : 4,661.92 = 1,886.24 : x
  2. Step 2: Convert to fraction form
    3,378.32/4,661.92 = 1,886.24/x
  3. Step 3: Cross multiply
    3,378.32x = 4,661.92 × 1,886.24
  4. Step 4: Simplify right side
    3,378.32x = 8,793,499.98
  5. Step 5: Solve for x
    x = 8,793,499.98/3,378.32
  6. Step 6: Final answer
    x = 2,602.92

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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.