Home / 3,148.86-4,345.64-2,084.79

Finding the Fourth Proportional to 3,148.86, 4,345.64 and 2,084.79

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Solution

The fourth proportional to 3,148.86, 4,345.64 and 2,084.79 is: 2,877.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.86 : 4,345.64 = 2,084.79 : x
  2. Step 2: Convert to fraction form
    3,148.86/4,345.64 = 2,084.79/x
  3. Step 3: Cross multiply
    3,148.86x = 4,345.64 × 2,084.79
  4. Step 4: Simplify right side
    3,148.86x = 9,059,757.68
  5. Step 5: Solve for x
    x = 9,059,757.68/3,148.86
  6. Step 6: Final answer
    x = 2,877.16

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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.