Home / 3,615.92-5,426.40-1,973.60

Finding the Fourth Proportional to 3,615.92, 5,426.40 and 1,973.60

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Solution

The fourth proportional to 3,615.92, 5,426.40 and 1,973.60 is: 2,961.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.92 : 5,426.40 = 1,973.60 : x
  2. Step 2: Convert to fraction form
    3,615.92/5,426.40 = 1,973.60/x
  3. Step 3: Cross multiply
    3,615.92x = 5,426.40 × 1,973.60
  4. Step 4: Simplify right side
    3,615.92x = 10,709,543.04
  5. Step 5: Solve for x
    x = 10,709,543.04/3,615.92
  6. Step 6: Final answer
    x = 2,961.78

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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.