Home / 4,627.72-6,386.52-2,740.78

Finding the Fourth Proportional to 4,627.72, 6,386.52 and 2,740.78

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Solution

The fourth proportional to 4,627.72, 6,386.52 and 2,740.78 is: 3,782.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,627.72 : 6,386.52 = 2,740.78 : x
  2. Step 2: Convert to fraction form
    4,627.72/6,386.52 = 2,740.78/x
  3. Step 3: Cross multiply
    4,627.72x = 6,386.52 × 2,740.78
  4. Step 4: Simplify right side
    4,627.72x = 17,504,046.29
  5. Step 5: Solve for x
    x = 17,504,046.29/4,627.72
  6. Step 6: Final answer
    x = 3,782.43

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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.