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Finding the Fourth Proportional to 6,309.61, 8,710.76 and 3,792.34

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Solution

The fourth proportional to 6,309.61, 8,710.76 and 3,792.34 is: 5,235.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,309.61 : 8,710.76 = 3,792.34 : x
  2. Step 2: Convert to fraction form
    6,309.61/8,710.76 = 3,792.34/x
  3. Step 3: Cross multiply
    6,309.61x = 8,710.76 × 3,792.34
  4. Step 4: Simplify right side
    6,309.61x = 33,034,163.58
  5. Step 5: Solve for x
    x = 33,034,163.58/6,309.61
  6. Step 6: Final answer
    x = 5,235.53

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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.