Home / 4,787-7,180.44-1,666.99

Finding the Fourth Proportional to 4,787, 7,180.44 and 1,666.99

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Solution

The fourth proportional to 4,787, 7,180.44 and 1,666.99 is: 2,500.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787 : 7,180.44 = 1,666.99 : x
  2. Step 2: Convert to fraction form
    4,787/7,180.44 = 1,666.99/x
  3. Step 3: Cross multiply
    4,787x = 7,180.44 × 1,666.99
  4. Step 4: Simplify right side
    4,787x = 11,969,721.68
  5. Step 5: Solve for x
    x = 11,969,721.68/4,787
  6. Step 6: Final answer
    x = 2,500.46

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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.