Home / 3,985.60-5,974.08-2,035.12

Finding the Fourth Proportional to 3,985.60, 5,974.08 and 2,035.12

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Solution

The fourth proportional to 3,985.60, 5,974.08 and 2,035.12 is: 3,050.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.60 : 5,974.08 = 2,035.12 : x
  2. Step 2: Convert to fraction form
    3,985.60/5,974.08 = 2,035.12/x
  3. Step 3: Cross multiply
    3,985.60x = 5,974.08 × 2,035.12
  4. Step 4: Simplify right side
    3,985.60x = 12,157,969.69
  5. Step 5: Solve for x
    x = 12,157,969.69/3,985.60
  6. Step 6: Final answer
    x = 3,050.47

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1.5x scale

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.