Home / 5,324.36-7,987.26-1,861.16

Finding the Fourth Proportional to 5,324.36, 7,987.26 and 1,861.16

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Solution

The fourth proportional to 5,324.36, 7,987.26 and 1,861.16 is: 2,791.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,324.36 : 7,987.26 = 1,861.16 : x
  2. Step 2: Convert to fraction form
    5,324.36/7,987.26 = 1,861.16/x
  3. Step 3: Cross multiply
    5,324.36x = 7,987.26 × 1,861.16
  4. Step 4: Simplify right side
    5,324.36x = 14,865,568.82
  5. Step 5: Solve for x
    x = 14,865,568.82/5,324.36
  6. Step 6: Final answer
    x = 2,791.99

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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.