Home / 4,259.89-6,389.87-1,486.55

Finding the Fourth Proportional to 4,259.89, 6,389.87 and 1,486.55

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Solution

The fourth proportional to 4,259.89, 6,389.87 and 1,486.55 is: 2,229.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,259.89 : 6,389.87 = 1,486.55 : x
  2. Step 2: Convert to fraction form
    4,259.89/6,389.87 = 1,486.55/x
  3. Step 3: Cross multiply
    4,259.89x = 6,389.87 × 1,486.55
  4. Step 4: Simplify right side
    4,259.89x = 9,498,861.25
  5. Step 5: Solve for x
    x = 9,498,861.25/4,259.89
  6. Step 6: Final answer
    x = 2,229.84

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Similar ratio
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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.