Home / 7,871.31-10,861.62-4,513.35

Finding the Fourth Proportional to 7,871.31, 10,861.62 and 4,513.35

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Solution

The fourth proportional to 7,871.31, 10,861.62 and 4,513.35 is: 6,227.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,871.31 : 10,861.62 = 4,513.35 : x
  2. Step 2: Convert to fraction form
    7,871.31/10,861.62 = 4,513.35/x
  3. Step 3: Cross multiply
    7,871.31x = 10,861.62 × 4,513.35
  4. Step 4: Simplify right side
    7,871.31x = 49,022,292.63
  5. Step 5: Solve for x
    x = 49,022,292.63/7,871.31
  6. Step 6: Final answer
    x = 6,227.97

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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.