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Finding the Fourth Proportional to 11,640.58, 17,460.87 and 2,875.66

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Solution

The fourth proportional to 11,640.58, 17,460.87 and 2,875.66 is: 4,313.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,640.58 : 17,460.87 = 2,875.66 : x
  2. Step 2: Convert to fraction form
    11,640.58/17,460.87 = 2,875.66/x
  3. Step 3: Cross multiply
    11,640.58x = 17,460.87 × 2,875.66
  4. Step 4: Simplify right side
    11,640.58x = 50,211,525.42
  5. Step 5: Solve for x
    x = 50,211,525.42/11,640.58
  6. Step 6: Final answer
    x = 4,313.49

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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.