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Finding the Fourth Proportional to 5,556.76, 8,335.11 and 1,661.02

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Solution

The fourth proportional to 5,556.76, 8,335.11 and 1,661.02 is: 2,491.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,556.76 : 8,335.11 = 1,661.02 : x
  2. Step 2: Convert to fraction form
    5,556.76/8,335.11 = 1,661.02/x
  3. Step 3: Cross multiply
    5,556.76x = 8,335.11 × 1,661.02
  4. Step 4: Simplify right side
    5,556.76x = 13,844,784.41
  5. Step 5: Solve for x
    x = 13,844,784.41/5,556.76
  6. Step 6: Final answer
    x = 2,491.52

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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.