Home / 4,213.09-6,319.62-1,291.02

Finding the Fourth Proportional to 4,213.09, 6,319.62 and 1,291.02

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Solution

The fourth proportional to 4,213.09, 6,319.62 and 1,291.02 is: 1,936.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.09 : 6,319.62 = 1,291.02 : x
  2. Step 2: Convert to fraction form
    4,213.09/6,319.62 = 1,291.02/x
  3. Step 3: Cross multiply
    4,213.09x = 6,319.62 × 1,291.02
  4. Step 4: Simplify right side
    4,213.09x = 8,158,755.81
  5. Step 5: Solve for x
    x = 8,158,755.81/4,213.09
  6. Step 6: Final answer
    x = 1,936.53

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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.