Home / 2,285.37-3,428.10-725.40

Finding the Fourth Proportional to 2,285.37, 3,428.10 and 725.40

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Solution

The fourth proportional to 2,285.37, 3,428.10 and 725.40 is: 1,088.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.37 : 3,428.10 = 725.40 : x
  2. Step 2: Convert to fraction form
    2,285.37/3,428.10 = 725.40/x
  3. Step 3: Cross multiply
    2,285.37x = 3,428.10 × 725.40
  4. Step 4: Simplify right side
    2,285.37x = 2,486,743.74
  5. Step 5: Solve for x
    x = 2,486,743.74/2,285.37
  6. Step 6: Final answer
    x = 1,088.11

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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.