Home / 4,985.25-7,478.82-1,867.47

Finding the Fourth Proportional to 4,985.25, 7,478.82 and 1,867.47

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Solution

The fourth proportional to 4,985.25, 7,478.82 and 1,867.47 is: 2,801.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.25 : 7,478.82 = 1,867.47 : x
  2. Step 2: Convert to fraction form
    4,985.25/7,478.82 = 1,867.47/x
  3. Step 3: Cross multiply
    4,985.25x = 7,478.82 × 1,867.47
  4. Step 4: Simplify right side
    4,985.25x = 13,966,471.99
  5. Step 5: Solve for x
    x = 13,966,471.99/4,985.25
  6. Step 6: Final answer
    x = 2,801.56

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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.