Home / 6,214.20-8,580.78-4,127.64

Finding the Fourth Proportional to 6,214.20, 8,580.78 and 4,127.64

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Solution

The fourth proportional to 6,214.20, 8,580.78 and 4,127.64 is: 5,699.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,214.20 : 8,580.78 = 4,127.64 : x
  2. Step 2: Convert to fraction form
    6,214.20/8,580.78 = 4,127.64/x
  3. Step 3: Cross multiply
    6,214.20x = 8,580.78 × 4,127.64
  4. Step 4: Simplify right side
    6,214.20x = 35,418,370.76
  5. Step 5: Solve for x
    x = 35,418,370.76/6,214.20
  6. Step 6: Final answer
    x = 5,699.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.