Home / 4,977.25-7,464.35-1,689.61

Finding the Fourth Proportional to 4,977.25, 7,464.35 and 1,689.61

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Solution

The fourth proportional to 4,977.25, 7,464.35 and 1,689.61 is: 2,533.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.25 : 7,464.35 = 1,689.61 : x
  2. Step 2: Convert to fraction form
    4,977.25/7,464.35 = 1,689.61/x
  3. Step 3: Cross multiply
    4,977.25x = 7,464.35 × 1,689.61
  4. Step 4: Simplify right side
    4,977.25x = 12,611,839.96
  5. Step 5: Solve for x
    x = 12,611,839.96/4,977.25
  6. Step 6: Final answer
    x = 2,533.90

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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.