Home / 2,239.73-3,086.80-1,821.46

Finding the Fourth Proportional to 2,239.73, 3,086.80 and 1,821.46

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Solution

The fourth proportional to 2,239.73, 3,086.80 and 1,821.46 is: 2,510.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.73 : 3,086.80 = 1,821.46 : x
  2. Step 2: Convert to fraction form
    2,239.73/3,086.80 = 1,821.46/x
  3. Step 3: Cross multiply
    2,239.73x = 3,086.80 × 1,821.46
  4. Step 4: Simplify right side
    2,239.73x = 5,622,482.73
  5. Step 5: Solve for x
    x = 5,622,482.73/2,239.73
  6. Step 6: Final answer
    x = 2,510.35

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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.