Home / 3,111.80-4,292.14-2,599.36

Finding the Fourth Proportional to 3,111.80, 4,292.14 and 2,599.36

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Solution

The fourth proportional to 3,111.80, 4,292.14 and 2,599.36 is: 3,585.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.80 : 4,292.14 = 2,599.36 : x
  2. Step 2: Convert to fraction form
    3,111.80/4,292.14 = 2,599.36/x
  3. Step 3: Cross multiply
    3,111.80x = 4,292.14 × 2,599.36
  4. Step 4: Simplify right side
    3,111.80x = 11,156,817.03
  5. Step 5: Solve for x
    x = 11,156,817.03/3,111.80
  6. Step 6: Final answer
    x = 3,585.33

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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.