Home / 3,847.18-5,309.21-2,503.32

Finding the Fourth Proportional to 3,847.18, 5,309.21 and 2,503.32

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Solution

The fourth proportional to 3,847.18, 5,309.21 and 2,503.32 is: 3,454.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.18 : 5,309.21 = 2,503.32 : x
  2. Step 2: Convert to fraction form
    3,847.18/5,309.21 = 2,503.32/x
  3. Step 3: Cross multiply
    3,847.18x = 5,309.21 × 2,503.32
  4. Step 4: Simplify right side
    3,847.18x = 13,290,651.58
  5. Step 5: Solve for x
    x = 13,290,651.58/3,847.18
  6. Step 6: Final answer
    x = 3,454.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.