Home / 5,255.15-7,918.88-4,351.05

Finding the Fourth Proportional to 5,255.15, 7,918.88 and 4,351.05

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Solution

The fourth proportional to 5,255.15, 7,918.88 and 4,351.05 is: 6,556.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.15 : 7,918.88 = 4,351.05 : x
  2. Step 2: Convert to fraction form
    5,255.15/7,918.88 = 4,351.05/x
  3. Step 3: Cross multiply
    5,255.15x = 7,918.88 × 4,351.05
  4. Step 4: Simplify right side
    5,255.15x = 34,455,421.07
  5. Step 5: Solve for x
    x = 34,455,421.07/5,255.15
  6. Step 6: Final answer
    x = 6,556.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.