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Finding the Fourth Proportional to 5,556.95, 8,335.71 and 1,661.66

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Solution

The fourth proportional to 5,556.95, 8,335.71 and 1,661.66 is: 2,492.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,556.95 : 8,335.71 = 1,661.66 : x
  2. Step 2: Convert to fraction form
    5,556.95/8,335.71 = 1,661.66/x
  3. Step 3: Cross multiply
    5,556.95x = 8,335.71 × 1,661.66
  4. Step 4: Simplify right side
    5,556.95x = 13,851,074.20
  5. Step 5: Solve for x
    x = 13,851,074.20/5,556.95
  6. Step 6: Final answer
    x = 2,492.57

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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.