Home / 2,881.29-3,976.14-1,622.35

Finding the Fourth Proportional to 2,881.29, 3,976.14 and 1,622.35

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Solution

The fourth proportional to 2,881.29, 3,976.14 and 1,622.35 is: 2,238.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.29 : 3,976.14 = 1,622.35 : x
  2. Step 2: Convert to fraction form
    2,881.29/3,976.14 = 1,622.35/x
  3. Step 3: Cross multiply
    2,881.29x = 3,976.14 × 1,622.35
  4. Step 4: Simplify right side
    2,881.29x = 6,450,670.29
  5. Step 5: Solve for x
    x = 6,450,670.29/2,881.29
  6. Step 6: Final answer
    x = 2,238.81

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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.