Home / 2,980.41-4,109.46-2,419.11

Finding the Fourth Proportional to 2,980.41, 4,109.46 and 2,419.11

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Solution

The fourth proportional to 2,980.41, 4,109.46 and 2,419.11 is: 3,335.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.41 : 4,109.46 = 2,419.11 : x
  2. Step 2: Convert to fraction form
    2,980.41/4,109.46 = 2,419.11/x
  3. Step 3: Cross multiply
    2,980.41x = 4,109.46 × 2,419.11
  4. Step 4: Simplify right side
    2,980.41x = 9,941,235.78
  5. Step 5: Solve for x
    x = 9,941,235.78/2,980.41
  6. Step 6: Final answer
    x = 3,335.53

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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.