Home / 2,040.58-2,819.46-1,690.66

Finding the Fourth Proportional to 2,040.58, 2,819.46 and 1,690.66

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Solution

The fourth proportional to 2,040.58, 2,819.46 and 1,690.66 is: 2,335.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.58 : 2,819.46 = 1,690.66 : x
  2. Step 2: Convert to fraction form
    2,040.58/2,819.46 = 1,690.66/x
  3. Step 3: Cross multiply
    2,040.58x = 2,819.46 × 1,690.66
  4. Step 4: Simplify right side
    2,040.58x = 4,766,748.24
  5. Step 5: Solve for x
    x = 4,766,748.24/2,040.58
  6. Step 6: Final answer
    x = 2,335.98

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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.