Home / 3,985.49-5,500.90-2,307.88

Finding the Fourth Proportional to 3,985.49, 5,500.90 and 2,307.88

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Solution

The fourth proportional to 3,985.49, 5,500.90 and 2,307.88 is: 3,185.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.49 : 5,500.90 = 2,307.88 : x
  2. Step 2: Convert to fraction form
    3,985.49/5,500.90 = 2,307.88/x
  3. Step 3: Cross multiply
    3,985.49x = 5,500.90 × 2,307.88
  4. Step 4: Simplify right side
    3,985.49x = 12,695,417.09
  5. Step 5: Solve for x
    x = 12,695,417.09/3,985.49
  6. Step 6: Final answer
    x = 3,185.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.