Home / 2,802.13-3,867.40-2,137.73

Finding the Fourth Proportional to 2,802.13, 3,867.40 and 2,137.73

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Solution

The fourth proportional to 2,802.13, 3,867.40 and 2,137.73 is: 2,950.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.13 : 3,867.40 = 2,137.73 : x
  2. Step 2: Convert to fraction form
    2,802.13/3,867.40 = 2,137.73/x
  3. Step 3: Cross multiply
    2,802.13x = 3,867.40 × 2,137.73
  4. Step 4: Simplify right side
    2,802.13x = 8,267,442.50
  5. Step 5: Solve for x
    x = 8,267,442.50/2,802.13
  6. Step 6: Final answer
    x = 2,950.41

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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.