Home / 5,373.82-7,415.85-3,135.79

Finding the Fourth Proportional to 5,373.82, 7,415.85 and 3,135.79

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Solution

The fourth proportional to 5,373.82, 7,415.85 and 3,135.79 is: 4,327.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,373.82 : 7,415.85 = 3,135.79 : x
  2. Step 2: Convert to fraction form
    5,373.82/7,415.85 = 3,135.79/x
  3. Step 3: Cross multiply
    5,373.82x = 7,415.85 × 3,135.79
  4. Step 4: Simplify right side
    5,373.82x = 23,254,548.27
  5. Step 5: Solve for x
    x = 23,254,548.27/5,373.82
  6. Step 6: Final answer
    x = 4,327.38

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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.