Home / 3,475.41-5,215.20-1,285.71

Finding the Fourth Proportional to 3,475.41, 5,215.20 and 1,285.71

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Solution

The fourth proportional to 3,475.41, 5,215.20 and 1,285.71 is: 1,929.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,475.41 : 5,215.20 = 1,285.71 : x
  2. Step 2: Convert to fraction form
    3,475.41/5,215.20 = 1,285.71/x
  3. Step 3: Cross multiply
    3,475.41x = 5,215.20 × 1,285.71
  4. Step 4: Simplify right side
    3,475.41x = 6,705,234.79
  5. Step 5: Solve for x
    x = 6,705,234.79/3,475.41
  6. Step 6: Final answer
    x = 1,929.34

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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.