Home / 2,802.11-3,866.85-1,623.15

Finding the Fourth Proportional to 2,802.11, 3,866.85 and 1,623.15

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Solution

The fourth proportional to 2,802.11, 3,866.85 and 1,623.15 is: 2,239.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.11 : 3,866.85 = 1,623.15 : x
  2. Step 2: Convert to fraction form
    2,802.11/3,866.85 = 1,623.15/x
  3. Step 3: Cross multiply
    2,802.11x = 3,866.85 × 1,623.15
  4. Step 4: Simplify right side
    2,802.11x = 6,276,477.58
  5. Step 5: Solve for x
    x = 6,276,477.58/2,802.11
  6. Step 6: Final answer
    x = 2,239.92

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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.