Home / 4,292.88-6,439.86-1,518.90

Finding the Fourth Proportional to 4,292.88, 6,439.86 and 1,518.90

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Solution

The fourth proportional to 4,292.88, 6,439.86 and 1,518.90 is: 2,278.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,292.88 : 6,439.86 = 1,518.90 : x
  2. Step 2: Convert to fraction form
    4,292.88/6,439.86 = 1,518.90/x
  3. Step 3: Cross multiply
    4,292.88x = 6,439.86 × 1,518.90
  4. Step 4: Simplify right side
    4,292.88x = 9,781,503.35
  5. Step 5: Solve for x
    x = 9,781,503.35/4,292.88
  6. Step 6: Final answer
    x = 2,278.54

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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.