Home / 2,414.81-3,331.94-1,420.20

Finding the Fourth Proportional to 2,414.81, 3,331.94 and 1,420.20

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Solution

The fourth proportional to 2,414.81, 3,331.94 and 1,420.20 is: 1,959.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,414.81 : 3,331.94 = 1,420.20 : x
  2. Step 2: Convert to fraction form
    2,414.81/3,331.94 = 1,420.20/x
  3. Step 3: Cross multiply
    2,414.81x = 3,331.94 × 1,420.20
  4. Step 4: Simplify right side
    2,414.81x = 4,732,014.09
  5. Step 5: Solve for x
    x = 4,732,014.09/2,414.81
  6. Step 6: Final answer
    x = 1,959.58

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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.