Home / 2,420.97-3,340.49-1,426.29

Finding the Fourth Proportional to 2,420.97, 3,340.49 and 1,426.29

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Solution

The fourth proportional to 2,420.97, 3,340.49 and 1,426.29 is: 1,968.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.97 : 3,340.49 = 1,426.29 : x
  2. Step 2: Convert to fraction form
    2,420.97/3,340.49 = 1,426.29/x
  3. Step 3: Cross multiply
    2,420.97x = 3,340.49 × 1,426.29
  4. Step 4: Simplify right side
    2,420.97x = 4,764,500.35
  5. Step 5: Solve for x
    x = 4,764,500.35/2,420.97
  6. Step 6: Final answer
    x = 1,968.01

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Double scale
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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.