Home / 2,426.88-3,349.62-1,431.80

Finding the Fourth Proportional to 2,426.88, 3,349.62 and 1,431.80

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Solution

The fourth proportional to 2,426.88, 3,349.62 and 1,431.80 is: 1,976.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,426.88 : 3,349.62 = 1,431.80 : x
  2. Step 2: Convert to fraction form
    2,426.88/3,349.62 = 1,431.80/x
  3. Step 3: Cross multiply
    2,426.88x = 3,349.62 × 1,431.80
  4. Step 4: Simplify right side
    2,426.88x = 4,795,969.17
  5. Step 5: Solve for x
    x = 4,795,969.17/2,426.88
  6. Step 6: Final answer
    x = 1,976.19

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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.