Home / 5,350.35-7,380.51-3,111.98

Finding the Fourth Proportional to 5,350.35, 7,380.51 and 3,111.98

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Solution

The fourth proportional to 5,350.35, 7,380.51 and 3,111.98 is: 4,292.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,350.35 : 7,380.51 = 3,111.98 : x
  2. Step 2: Convert to fraction form
    5,350.35/7,380.51 = 3,111.98/x
  3. Step 3: Cross multiply
    5,350.35x = 7,380.51 × 3,111.98
  4. Step 4: Simplify right side
    5,350.35x = 22,967,999.51
  5. Step 5: Solve for x
    x = 22,967,999.51/5,350.35
  6. Step 6: Final answer
    x = 4,292.80

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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.