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Finding the Fourth Proportional to 4,775.88, 7,161.19 and 1,655.61

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Solution

The fourth proportional to 4,775.88, 7,161.19 and 1,655.61 is: 2,482.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,775.88 : 7,161.19 = 1,655.61 : x
  2. Step 2: Convert to fraction form
    4,775.88/7,161.19 = 1,655.61/x
  3. Step 3: Cross multiply
    4,775.88x = 7,161.19 × 1,655.61
  4. Step 4: Simplify right side
    4,775.88x = 11,856,137.78
  5. Step 5: Solve for x
    x = 11,856,137.78/4,775.88
  6. Step 6: Final answer
    x = 2,482.50

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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.