Home / 2,881.11-3,976.31-1,762.23

Finding the Fourth Proportional to 2,881.11, 3,976.31 and 1,762.23

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Solution

The fourth proportional to 2,881.11, 3,976.31 and 1,762.23 is: 2,432.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.11 : 3,976.31 = 1,762.23 : x
  2. Step 2: Convert to fraction form
    2,881.11/3,976.31 = 1,762.23/x
  3. Step 3: Cross multiply
    2,881.11x = 3,976.31 × 1,762.23
  4. Step 4: Simplify right side
    2,881.11x = 7,007,172.77
  5. Step 5: Solve for x
    x = 7,007,172.77/2,881.11
  6. Step 6: Final answer
    x = 2,432.11

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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.