Home / 6,531.85-9,784.21-3,190.01

Finding the Fourth Proportional to 6,531.85, 9,784.21 and 3,190.01

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Solution

The fourth proportional to 6,531.85, 9,784.21 and 3,190.01 is: 4,778.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,531.85 : 9,784.21 = 3,190.01 : x
  2. Step 2: Convert to fraction form
    6,531.85/9,784.21 = 3,190.01/x
  3. Step 3: Cross multiply
    6,531.85x = 9,784.21 × 3,190.01
  4. Step 4: Simplify right side
    6,531.85x = 31,211,727.74
  5. Step 5: Solve for x
    x = 31,211,727.74/6,531.85
  6. Step 6: Final answer
    x = 4,778.39

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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.