Home / 2,991.18-4,129.55-2,326.58

Finding the Fourth Proportional to 2,991.18, 4,129.55 and 2,326.58

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Solution

The fourth proportional to 2,991.18, 4,129.55 and 2,326.58 is: 3,212.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.18 : 4,129.55 = 2,326.58 : x
  2. Step 2: Convert to fraction form
    2,991.18/4,129.55 = 2,326.58/x
  3. Step 3: Cross multiply
    2,991.18x = 4,129.55 × 2,326.58
  4. Step 4: Simplify right side
    2,991.18x = 9,607,728.44
  5. Step 5: Solve for x
    x = 9,607,728.44/2,991.18
  6. Step 6: Final answer
    x = 3,212.02

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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.