Home / 2,428.93-3,352.23-1,380.79

Finding the Fourth Proportional to 2,428.93, 3,352.23 and 1,380.79

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Solution

The fourth proportional to 2,428.93, 3,352.23 and 1,380.79 is: 1,905.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.93 : 3,352.23 = 1,380.79 : x
  2. Step 2: Convert to fraction form
    2,428.93/3,352.23 = 1,380.79/x
  3. Step 3: Cross multiply
    2,428.93x = 3,352.23 × 1,380.79
  4. Step 4: Simplify right side
    2,428.93x = 4,628,725.66
  5. Step 5: Solve for x
    x = 4,628,725.66/2,428.93
  6. Step 6: Final answer
    x = 1,905.66

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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.