Home / 2,029.80-2,801.07-1,145.55

Finding the Fourth Proportional to 2,029.80, 2,801.07 and 1,145.55

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Solution

The fourth proportional to 2,029.80, 2,801.07 and 1,145.55 is: 1,580.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,029.80 : 2,801.07 = 1,145.55 : x
  2. Step 2: Convert to fraction form
    2,029.80/2,801.07 = 1,145.55/x
  3. Step 3: Cross multiply
    2,029.80x = 2,801.07 × 1,145.55
  4. Step 4: Simplify right side
    2,029.80x = 3,208,765.74
  5. Step 5: Solve for x
    x = 3,208,765.74/2,029.80
  6. Step 6: Final answer
    x = 1,580.83

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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.