Home / 4,787.55-7,181.09-1,666.59

Finding the Fourth Proportional to 4,787.55, 7,181.09 and 1,666.59

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Solution

The fourth proportional to 4,787.55, 7,181.09 and 1,666.59 is: 2,499.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.55 : 7,181.09 = 1,666.59 : x
  2. Step 2: Convert to fraction form
    4,787.55/7,181.09 = 1,666.59/x
  3. Step 3: Cross multiply
    4,787.55x = 7,181.09 × 1,666.59
  4. Step 4: Simplify right side
    4,787.55x = 11,967,924.45
  5. Step 5: Solve for x
    x = 11,967,924.45/4,787.55
  6. Step 6: Final answer
    x = 2,499.80

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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.