Home / 4,909.72-7,362.52-1,985.97

Finding the Fourth Proportional to 4,909.72, 7,362.52 and 1,985.97

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Solution

The fourth proportional to 4,909.72, 7,362.52 and 1,985.97 is: 2,978.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.72 : 7,362.52 = 1,985.97 : x
  2. Step 2: Convert to fraction form
    4,909.72/7,362.52 = 1,985.97/x
  3. Step 3: Cross multiply
    4,909.72x = 7,362.52 × 1,985.97
  4. Step 4: Simplify right side
    4,909.72x = 14,621,743.84
  5. Step 5: Solve for x
    x = 14,621,743.84/4,909.72
  6. Step 6: Final answer
    x = 2,978.12

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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.