Home / 3,422.07-4,725.13-2,678.15

Finding the Fourth Proportional to 3,422.07, 4,725.13 and 2,678.15

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Solution

The fourth proportional to 3,422.07, 4,725.13 and 2,678.15 is: 3,697.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.07 : 4,725.13 = 2,678.15 : x
  2. Step 2: Convert to fraction form
    3,422.07/4,725.13 = 2,678.15/x
  3. Step 3: Cross multiply
    3,422.07x = 4,725.13 × 2,678.15
  4. Step 4: Simplify right side
    3,422.07x = 12,654,569.89
  5. Step 5: Solve for x
    x = 12,654,569.89/3,422.07
  6. Step 6: Final answer
    x = 3,697.93

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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.