Home / 3,985.48-5,499.84-2,217.04

Finding the Fourth Proportional to 3,985.48, 5,499.84 and 2,217.04

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Solution

The fourth proportional to 3,985.48, 5,499.84 and 2,217.04 is: 3,059.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.48 : 5,499.84 = 2,217.04 : x
  2. Step 2: Convert to fraction form
    3,985.48/5,499.84 = 2,217.04/x
  3. Step 3: Cross multiply
    3,985.48x = 5,499.84 × 2,217.04
  4. Step 4: Simplify right side
    3,985.48x = 12,193,365.27
  5. Step 5: Solve for x
    x = 12,193,365.27/3,985.48
  6. Step 6: Final answer
    x = 3,059.45

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1.5x scale

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.