Home / 1,841.32-2,759.40-1,428.56

Finding the Fourth Proportional to 1,841.32, 2,759.40 and 1,428.56

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Solution

The fourth proportional to 1,841.32, 2,759.40 and 1,428.56 is: 2,140.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,841.32 : 2,759.40 = 1,428.56 : x
  2. Step 2: Convert to fraction form
    1,841.32/2,759.40 = 1,428.56/x
  3. Step 3: Cross multiply
    1,841.32x = 2,759.40 × 1,428.56
  4. Step 4: Simplify right side
    1,841.32x = 3,941,968.46
  5. Step 5: Solve for x
    x = 3,941,968.46/1,841.32
  6. Step 6: Final answer
    x = 2,140.84

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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.