Home / 2,125.86-3,182.12-1,343.16

Finding the Fourth Proportional to 2,125.86, 3,182.12 and 1,343.16

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Solution

The fourth proportional to 2,125.86, 3,182.12 and 1,343.16 is: 2,010.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.86 : 3,182.12 = 1,343.16 : x
  2. Step 2: Convert to fraction form
    2,125.86/3,182.12 = 1,343.16/x
  3. Step 3: Cross multiply
    2,125.86x = 3,182.12 × 1,343.16
  4. Step 4: Simplify right side
    2,125.86x = 4,274,089.58
  5. Step 5: Solve for x
    x = 4,274,089.58/2,125.86
  6. Step 6: Final answer
    x = 2,010.52

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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.