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Finding the Fourth Proportional to 6,168.52, 8,515.04 and 4,077.64

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Solution

The fourth proportional to 6,168.52, 8,515.04 and 4,077.64 is: 5,628.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,168.52 : 8,515.04 = 4,077.64 : x
  2. Step 2: Convert to fraction form
    6,168.52/8,515.04 = 4,077.64/x
  3. Step 3: Cross multiply
    6,168.52x = 8,515.04 × 4,077.64
  4. Step 4: Simplify right side
    6,168.52x = 34,721,267.71
  5. Step 5: Solve for x
    x = 34,721,267.71/6,168.52
  6. Step 6: Final answer
    x = 5,628.78

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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.