Home / 4,199.32-6,299.53-1,387.22

Finding the Fourth Proportional to 4,199.32, 6,299.53 and 1,387.22

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Solution

The fourth proportional to 4,199.32, 6,299.53 and 1,387.22 is: 2,081.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,199.32 : 6,299.53 = 1,387.22 : x
  2. Step 2: Convert to fraction form
    4,199.32/6,299.53 = 1,387.22/x
  3. Step 3: Cross multiply
    4,199.32x = 6,299.53 × 1,387.22
  4. Step 4: Simplify right side
    4,199.32x = 8,738,834.01
  5. Step 5: Solve for x
    x = 8,738,834.01/4,199.32
  6. Step 6: Final answer
    x = 2,081.01

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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.