Home / 2,428.25-3,642.73-889.13

Finding the Fourth Proportional to 2,428.25, 3,642.73 and 889.13

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Solution

The fourth proportional to 2,428.25, 3,642.73 and 889.13 is: 1,333.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.25 : 3,642.73 = 889.13 : x
  2. Step 2: Convert to fraction form
    2,428.25/3,642.73 = 889.13/x
  3. Step 3: Cross multiply
    2,428.25x = 3,642.73 × 889.13
  4. Step 4: Simplify right side
    2,428.25x = 3,238,840.09
  5. Step 5: Solve for x
    x = 3,238,840.09/2,428.25
  6. Step 6: Final answer
    x = 1,333.82

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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.