Home / 1,617.84-2,426.14-1,275.21

Finding the Fourth Proportional to 1,617.84, 2,426.14 and 1,275.21

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Solution

The fourth proportional to 1,617.84, 2,426.14 and 1,275.21 is: 1,912.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.84 : 2,426.14 = 1,275.21 : x
  2. Step 2: Convert to fraction form
    1,617.84/2,426.14 = 1,275.21/x
  3. Step 3: Cross multiply
    1,617.84x = 2,426.14 × 1,275.21
  4. Step 4: Simplify right side
    1,617.84x = 3,093,837.99
  5. Step 5: Solve for x
    x = 3,093,837.99/1,617.84
  6. Step 6: Final answer
    x = 1,912.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.