Home / 3,378.71-4,661.96-1,886.55

Finding the Fourth Proportional to 3,378.71, 4,661.96 and 1,886.55

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Solution

The fourth proportional to 3,378.71, 4,661.96 and 1,886.55 is: 2,603.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.71 : 4,661.96 = 1,886.55 : x
  2. Step 2: Convert to fraction form
    3,378.71/4,661.96 = 1,886.55/x
  3. Step 3: Cross multiply
    3,378.71x = 4,661.96 × 1,886.55
  4. Step 4: Simplify right side
    3,378.71x = 8,795,011.21
  5. Step 5: Solve for x
    x = 8,795,011.21/3,378.71
  6. Step 6: Final answer
    x = 2,603.07

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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.