Home / 3,839.07-5,298.08-2,160.55

Finding the Fourth Proportional to 3,839.07, 5,298.08 and 2,160.55

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Solution

The fourth proportional to 3,839.07, 5,298.08 and 2,160.55 is: 2,981.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.07 : 5,298.08 = 2,160.55 : x
  2. Step 2: Convert to fraction form
    3,839.07/5,298.08 = 2,160.55/x
  3. Step 3: Cross multiply
    3,839.07x = 5,298.08 × 2,160.55
  4. Step 4: Simplify right side
    3,839.07x = 11,446,766.74
  5. Step 5: Solve for x
    x = 11,446,766.74/3,839.07
  6. Step 6: Final answer
    x = 2,981.65

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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.