Home / 3,504.47-4,838.61-2,178.77

Finding the Fourth Proportional to 3,504.47, 4,838.61 and 2,178.77

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Solution

The fourth proportional to 3,504.47, 4,838.61 and 2,178.77 is: 3,008.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,504.47 : 4,838.61 = 2,178.77 : x
  2. Step 2: Convert to fraction form
    3,504.47/4,838.61 = 2,178.77/x
  3. Step 3: Cross multiply
    3,504.47x = 4,838.61 × 2,178.77
  4. Step 4: Simplify right side
    3,504.47x = 10,542,194.12
  5. Step 5: Solve for x
    x = 10,542,194.12/3,504.47
  6. Step 6: Final answer
    x = 3,008.22

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Half scale
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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.