Home / 2,681.20-4,022.95-1,383.58

Finding the Fourth Proportional to 2,681.20, 4,022.95 and 1,383.58

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Solution

The fourth proportional to 2,681.20, 4,022.95 and 1,383.58 is: 2,075.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.20 : 4,022.95 = 1,383.58 : x
  2. Step 2: Convert to fraction form
    2,681.20/4,022.95 = 1,383.58/x
  3. Step 3: Cross multiply
    2,681.20x = 4,022.95 × 1,383.58
  4. Step 4: Simplify right side
    2,681.20x = 5,566,059.64
  5. Step 5: Solve for x
    x = 5,566,059.64/2,681.20
  6. Step 6: Final answer
    x = 2,075.96

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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.