Home / 2,801.90-4,202.84-1,340.71

Finding the Fourth Proportional to 2,801.90, 4,202.84 and 1,340.71

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Solution

The fourth proportional to 2,801.90, 4,202.84 and 1,340.71 is: 2,011.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,801.90 : 4,202.84 = 1,340.71 : x
  2. Step 2: Convert to fraction form
    2,801.90/4,202.84 = 1,340.71/x
  3. Step 3: Cross multiply
    2,801.90x = 4,202.84 × 1,340.71
  4. Step 4: Simplify right side
    2,801.90x = 5,634,782.46
  5. Step 5: Solve for x
    x = 5,634,782.46/2,801.90
  6. Step 6: Final answer
    x = 2,011.06

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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.