Home / 3,877.15-5,345.86-3,166.38

Finding the Fourth Proportional to 3,877.15, 5,345.86 and 3,166.38

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Solution

The fourth proportional to 3,877.15, 5,345.86 and 3,166.38 is: 4,365.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.15 : 5,345.86 = 3,166.38 : x
  2. Step 2: Convert to fraction form
    3,877.15/5,345.86 = 3,166.38/x
  3. Step 3: Cross multiply
    3,877.15x = 5,345.86 × 3,166.38
  4. Step 4: Simplify right side
    3,877.15x = 16,927,024.19
  5. Step 5: Solve for x
    x = 16,927,024.19/3,877.15
  6. Step 6: Final answer
    x = 4,365.84

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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.