Home / 2,053.80-3,080.70-1,871.55

Finding the Fourth Proportional to 2,053.80, 3,080.70 and 1,871.55

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Solution

The fourth proportional to 2,053.80, 3,080.70 and 1,871.55 is: 2,807.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,053.80 : 3,080.70 = 1,871.55 : x
  2. Step 2: Convert to fraction form
    2,053.80/3,080.70 = 1,871.55/x
  3. Step 3: Cross multiply
    2,053.80x = 3,080.70 × 1,871.55
  4. Step 4: Simplify right side
    2,053.80x = 5,765,684.09
  5. Step 5: Solve for x
    x = 5,765,684.09/2,053.80
  6. Step 6: Final answer
    x = 2,807.33

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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.