Home / 3,847.32-5,770.15-1,215.03

Finding the Fourth Proportional to 3,847.32, 5,770.15 and 1,215.03

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Solution

The fourth proportional to 3,847.32, 5,770.15 and 1,215.03 is: 1,822.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.32 : 5,770.15 = 1,215.03 : x
  2. Step 2: Convert to fraction form
    3,847.32/5,770.15 = 1,215.03/x
  3. Step 3: Cross multiply
    3,847.32x = 5,770.15 × 1,215.03
  4. Step 4: Simplify right side
    3,847.32x = 7,010,905.35
  5. Step 5: Solve for x
    x = 7,010,905.35/3,847.32
  6. Step 6: Final answer
    x = 1,822.28

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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.