Home / 2,433.90-3,645.45-1,278.30

Finding the Fourth Proportional to 2,433.90, 3,645.45 and 1,278.30

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Solution

The fourth proportional to 2,433.90, 3,645.45 and 1,278.30 is: 1,914.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,433.90 : 3,645.45 = 1,278.30 : x
  2. Step 2: Convert to fraction form
    2,433.90/3,645.45 = 1,278.30/x
  3. Step 3: Cross multiply
    2,433.90x = 3,645.45 × 1,278.30
  4. Step 4: Simplify right side
    2,433.90x = 4,659,978.74
  5. Step 5: Solve for x
    x = 4,659,978.74/2,433.90
  6. Step 6: Final answer
    x = 1,914.61

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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.