Home / 4,985.03-7,478.76-2,519.79

Finding the Fourth Proportional to 4,985.03, 7,478.76 and 2,519.79

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Solution

The fourth proportional to 4,985.03, 7,478.76 and 2,519.79 is: 3,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.03 : 7,478.76 = 2,519.79 : x
  2. Step 2: Convert to fraction form
    4,985.03/7,478.76 = 2,519.79/x
  3. Step 3: Cross multiply
    4,985.03x = 7,478.76 × 2,519.79
  4. Step 4: Simplify right side
    4,985.03x = 18,844,904.66
  5. Step 5: Solve for x
    x = 18,844,904.66/4,985.03
  6. Step 6: Final answer
    x = 3,780.30

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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.