Home / 5,403.90-7,460.79-3,705.27

Finding the Fourth Proportional to 5,403.90, 7,460.79 and 3,705.27

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Solution

The fourth proportional to 5,403.90, 7,460.79 and 3,705.27 is: 5,115.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.90 : 7,460.79 = 3,705.27 : x
  2. Step 2: Convert to fraction form
    5,403.90/7,460.79 = 3,705.27/x
  3. Step 3: Cross multiply
    5,403.90x = 7,460.79 × 3,705.27
  4. Step 4: Simplify right side
    5,403.90x = 27,644,241.36
  5. Step 5: Solve for x
    x = 27,644,241.36/5,403.90
  6. Step 6: Final answer
    x = 5,115.61

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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.