Home / 2,111.93-3,167.13-1,124.13

Finding the Fourth Proportional to 2,111.93, 3,167.13 and 1,124.13

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Solution

The fourth proportional to 2,111.93, 3,167.13 and 1,124.13 is: 1,685.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111.93 : 3,167.13 = 1,124.13 : x
  2. Step 2: Convert to fraction form
    2,111.93/3,167.13 = 1,124.13/x
  3. Step 3: Cross multiply
    2,111.93x = 3,167.13 × 1,124.13
  4. Step 4: Simplify right side
    2,111.93x = 3,560,281.94
  5. Step 5: Solve for x
    x = 3,560,281.94/2,111.93
  6. Step 6: Final answer
    x = 1,685.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.