Home / 3,971.96-5,961.18-1,665.08

Finding the Fourth Proportional to 3,971.96, 5,961.18 and 1,665.08

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Solution

The fourth proportional to 3,971.96, 5,961.18 and 1,665.08 is: 2,498.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.96 : 5,961.18 = 1,665.08 : x
  2. Step 2: Convert to fraction form
    3,971.96/5,961.18 = 1,665.08/x
  3. Step 3: Cross multiply
    3,971.96x = 5,961.18 × 1,665.08
  4. Step 4: Simplify right side
    3,971.96x = 9,925,841.59
  5. Step 5: Solve for x
    x = 9,925,841.59/3,971.96
  6. Step 6: Final answer
    x = 2,498.98

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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.