Home / 3,990.10-5,984.93-1,768.29

Finding the Fourth Proportional to 3,990.10, 5,984.93 and 1,768.29

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Solution

The fourth proportional to 3,990.10, 5,984.93 and 1,768.29 is: 2,652.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.10 : 5,984.93 = 1,768.29 : x
  2. Step 2: Convert to fraction form
    3,990.10/5,984.93 = 1,768.29/x
  3. Step 3: Cross multiply
    3,990.10x = 5,984.93 × 1,768.29
  4. Step 4: Simplify right side
    3,990.10x = 10,583,107.68
  5. Step 5: Solve for x
    x = 10,583,107.68/3,990.10
  6. Step 6: Final answer
    x = 2,652.34

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Double scale
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Similar ratio
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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.