Home / 2,925.20-4,035.84-2,086.04

Finding the Fourth Proportional to 2,925.20, 4,035.84 and 2,086.04

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Solution

The fourth proportional to 2,925.20, 4,035.84 and 2,086.04 is: 2,878.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.20 : 4,035.84 = 2,086.04 : x
  2. Step 2: Convert to fraction form
    2,925.20/4,035.84 = 2,086.04/x
  3. Step 3: Cross multiply
    2,925.20x = 4,035.84 × 2,086.04
  4. Step 4: Simplify right side
    2,925.20x = 8,418,923.67
  5. Step 5: Solve for x
    x = 8,418,923.67/2,925.20
  6. Step 6: Final answer
    x = 2,878.07

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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.