Home / 4,252.55-6,378.84-1,291.02

Finding the Fourth Proportional to 4,252.55, 6,378.84 and 1,291.02

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Solution

The fourth proportional to 4,252.55, 6,378.84 and 1,291.02 is: 1,936.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,252.55 : 6,378.84 = 1,291.02 : x
  2. Step 2: Convert to fraction form
    4,252.55/6,378.84 = 1,291.02/x
  3. Step 3: Cross multiply
    4,252.55x = 6,378.84 × 1,291.02
  4. Step 4: Simplify right side
    4,252.55x = 8,235,210.02
  5. Step 5: Solve for x
    x = 8,235,210.02/4,252.55
  6. Step 6: Final answer
    x = 1,936.53

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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.