Home / 5,239.64-7,862.16-2,319.86

Finding the Fourth Proportional to 5,239.64, 7,862.16 and 2,319.86

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Solution

The fourth proportional to 5,239.64, 7,862.16 and 2,319.86 is: 3,480.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.64 : 7,862.16 = 2,319.86 : x
  2. Step 2: Convert to fraction form
    5,239.64/7,862.16 = 2,319.86/x
  3. Step 3: Cross multiply
    5,239.64x = 7,862.16 × 2,319.86
  4. Step 4: Simplify right side
    5,239.64x = 18,239,110.50
  5. Step 5: Solve for x
    x = 18,239,110.50/5,239.64
  6. Step 6: Final answer
    x = 3,480.99

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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.