Home / 5,349.06-7,380.99-2,991.15

Finding the Fourth Proportional to 5,349.06, 7,380.99 and 2,991.15

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Solution

The fourth proportional to 5,349.06, 7,380.99 and 2,991.15 is: 4,127.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,349.06 : 7,380.99 = 2,991.15 : x
  2. Step 2: Convert to fraction form
    5,349.06/7,380.99 = 2,991.15/x
  3. Step 3: Cross multiply
    5,349.06x = 7,380.99 × 2,991.15
  4. Step 4: Simplify right side
    5,349.06x = 22,077,648.24
  5. Step 5: Solve for x
    x = 22,077,648.24/5,349.06
  6. Step 6: Final answer
    x = 4,127.39

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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.