Home / 3,036.94-4,192.80-1,990.82

Finding the Fourth Proportional to 3,036.94, 4,192.80 and 1,990.82

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Solution

The fourth proportional to 3,036.94, 4,192.80 and 1,990.82 is: 2,748.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,036.94 : 4,192.80 = 1,990.82 : x
  2. Step 2: Convert to fraction form
    3,036.94/4,192.80 = 1,990.82/x
  3. Step 3: Cross multiply
    3,036.94x = 4,192.80 × 1,990.82
  4. Step 4: Simplify right side
    3,036.94x = 8,347,113.11
  5. Step 5: Solve for x
    x = 8,347,113.11/3,036.94
  6. Step 6: Final answer
    x = 2,748.53

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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.