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Finding the Fourth Proportional to 5,556.68, 8,335.02 and 1,661.08

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Solution

The fourth proportional to 5,556.68, 8,335.02 and 1,661.08 is: 2,491.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,556.68 : 8,335.02 = 1,661.08 : x
  2. Step 2: Convert to fraction form
    5,556.68/8,335.02 = 1,661.08/x
  3. Step 3: Cross multiply
    5,556.68x = 8,335.02 × 1,661.08
  4. Step 4: Simplify right side
    5,556.68x = 13,845,135.02
  5. Step 5: Solve for x
    x = 13,845,135.02/5,556.68
  6. Step 6: Final answer
    x = 2,491.62

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Half scale
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Double scale
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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.