Home / 4,755.60-6,561.67-2,986.56

Finding the Fourth Proportional to 4,755.60, 6,561.67 and 2,986.56

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Solution

The fourth proportional to 4,755.60, 6,561.67 and 2,986.56 is: 4,120.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,755.60 : 6,561.67 = 2,986.56 : x
  2. Step 2: Convert to fraction form
    4,755.60/6,561.67 = 2,986.56/x
  3. Step 3: Cross multiply
    4,755.60x = 6,561.67 × 2,986.56
  4. Step 4: Simplify right side
    4,755.60x = 19,596,821.16
  5. Step 5: Solve for x
    x = 19,596,821.16/4,755.60
  6. Step 6: Final answer
    x = 4,120.79

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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.