Home / 3,170.31-4,365.09-2,878.71

Finding the Fourth Proportional to 3,170.31, 4,365.09 and 2,878.71

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Solution

The fourth proportional to 3,170.31, 4,365.09 and 2,878.71 is: 3,963.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,170.31 : 4,365.09 = 2,878.71 : x
  2. Step 2: Convert to fraction form
    3,170.31/4,365.09 = 2,878.71/x
  3. Step 3: Cross multiply
    3,170.31x = 4,365.09 × 2,878.71
  4. Step 4: Simplify right side
    3,170.31x = 12,565,828.23
  5. Step 5: Solve for x
    x = 12,565,828.23/3,170.31
  6. Step 6: Final answer
    x = 3,963.60

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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.