Home / 3,913.61-5,400.77-2,341.71

Finding the Fourth Proportional to 3,913.61, 5,400.77 and 2,341.71

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Solution

The fourth proportional to 3,913.61, 5,400.77 and 2,341.71 is: 3,231.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.61 : 5,400.77 = 2,341.71 : x
  2. Step 2: Convert to fraction form
    3,913.61/5,400.77 = 2,341.71/x
  3. Step 3: Cross multiply
    3,913.61x = 5,400.77 × 2,341.71
  4. Step 4: Simplify right side
    3,913.61x = 12,647,025.41
  5. Step 5: Solve for x
    x = 12,647,025.41/3,913.61
  6. Step 6: Final answer
    x = 3,231.55

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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.