Home / 5,415.75-8,081.73-4,832.55

Finding the Fourth Proportional to 5,415.75, 8,081.73 and 4,832.55

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Solution

The fourth proportional to 5,415.75, 8,081.73 and 4,832.55 is: 7,211.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.75 : 8,081.73 = 4,832.55 : x
  2. Step 2: Convert to fraction form
    5,415.75/8,081.73 = 4,832.55/x
  3. Step 3: Cross multiply
    5,415.75x = 8,081.73 × 4,832.55
  4. Step 4: Simplify right side
    5,415.75x = 39,055,364.31
  5. Step 5: Solve for x
    x = 39,055,364.31/5,415.75
  6. Step 6: Final answer
    x = 7,211.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.