Home / 3,985.08-5,973.06-1,982.76

Finding the Fourth Proportional to 3,985.08, 5,973.06 and 1,982.76

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Solution

The fourth proportional to 3,985.08, 5,973.06 and 1,982.76 is: 2,971.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.08 : 5,973.06 = 1,982.76 : x
  2. Step 2: Convert to fraction form
    3,985.08/5,973.06 = 1,982.76/x
  3. Step 3: Cross multiply
    3,985.08x = 5,973.06 × 1,982.76
  4. Step 4: Simplify right side
    3,985.08x = 11,843,144.45
  5. Step 5: Solve for x
    x = 11,843,144.45/3,985.08
  6. Step 6: Final answer
    x = 2,971.87

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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.