Home / 4,755.15-7,129.54-4,260.35

Finding the Fourth Proportional to 4,755.15, 7,129.54 and 4,260.35

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Solution

The fourth proportional to 4,755.15, 7,129.54 and 4,260.35 is: 6,387.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,755.15 : 7,129.54 = 4,260.35 : x
  2. Step 2: Convert to fraction form
    4,755.15/7,129.54 = 4,260.35/x
  3. Step 3: Cross multiply
    4,755.15x = 7,129.54 × 4,260.35
  4. Step 4: Simplify right side
    4,755.15x = 30,374,300.09
  5. Step 5: Solve for x
    x = 30,374,300.09/4,755.15
  6. Step 6: Final answer
    x = 6,387.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.