Home / 3,417.24-4,712.31-2,857.62

Finding the Fourth Proportional to 3,417.24, 4,712.31 and 2,857.62

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Solution

The fourth proportional to 3,417.24, 4,712.31 and 2,857.62 is: 3,940.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.24 : 4,712.31 = 2,857.62 : x
  2. Step 2: Convert to fraction form
    3,417.24/4,712.31 = 2,857.62/x
  3. Step 3: Cross multiply
    3,417.24x = 4,712.31 × 2,857.62
  4. Step 4: Simplify right side
    3,417.24x = 13,465,991.30
  5. Step 5: Solve for x
    x = 13,465,991.30/3,417.24
  6. Step 6: Final answer
    x = 3,940.60

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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.