Home / 3,780.54-5,670.02-1,439.73

Finding the Fourth Proportional to 3,780.54, 5,670.02 and 1,439.73

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Solution

The fourth proportional to 3,780.54, 5,670.02 and 1,439.73 is: 2,159.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.54 : 5,670.02 = 1,439.73 : x
  2. Step 2: Convert to fraction form
    3,780.54/5,670.02 = 1,439.73/x
  3. Step 3: Cross multiply
    3,780.54x = 5,670.02 × 1,439.73
  4. Step 4: Simplify right side
    3,780.54x = 8,163,290.70
  5. Step 5: Solve for x
    x = 8,163,290.70/3,780.54
  6. Step 6: Final answer
    x = 2,159.29

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1.5x scale

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.