Home / 3,207.02-4,421.39-2,878.97

Finding the Fourth Proportional to 3,207.02, 4,421.39 and 2,878.97

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Solution

The fourth proportional to 3,207.02, 4,421.39 and 2,878.97 is: 3,969.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.02 : 4,421.39 = 2,878.97 : x
  2. Step 2: Convert to fraction form
    3,207.02/4,421.39 = 2,878.97/x
  3. Step 3: Cross multiply
    3,207.02x = 4,421.39 × 2,878.97
  4. Step 4: Simplify right side
    3,207.02x = 12,729,012.67
  5. Step 5: Solve for x
    x = 12,729,012.67/3,207.02
  6. Step 6: Final answer
    x = 3,969.12

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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.