Home / 2,278.23-3,415.89-1,353.54

Finding the Fourth Proportional to 2,278.23, 3,415.89 and 1,353.54

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Solution

The fourth proportional to 2,278.23, 3,415.89 and 1,353.54 is: 2,029.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.23 : 3,415.89 = 1,353.54 : x
  2. Step 2: Convert to fraction form
    2,278.23/3,415.89 = 1,353.54/x
  3. Step 3: Cross multiply
    2,278.23x = 3,415.89 × 1,353.54
  4. Step 4: Simplify right side
    2,278.23x = 4,623,543.75
  5. Step 5: Solve for x
    x = 4,623,543.75/2,278.23
  6. Step 6: Final answer
    x = 2,029.45

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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.