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Finding the Fourth Proportional to 6,875.82, 10,313.73 and 2,490.21

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Solution

The fourth proportional to 6,875.82, 10,313.73 and 2,490.21 is: 3,735.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.82 : 10,313.73 = 2,490.21 : x
  2. Step 2: Convert to fraction form
    6,875.82/10,313.73 = 2,490.21/x
  3. Step 3: Cross multiply
    6,875.82x = 10,313.73 × 2,490.21
  4. Step 4: Simplify right side
    6,875.82x = 25,683,353.58
  5. Step 5: Solve for x
    x = 25,683,353.58/6,875.82
  6. Step 6: Final answer
    x = 3,735.32

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Similar ratio
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1.5x scale

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.