Home / 2,086.46-3,125.56-1,621.70

Finding the Fourth Proportional to 2,086.46, 3,125.56 and 1,621.70

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Solution

The fourth proportional to 2,086.46, 3,125.56 and 1,621.70 is: 2,429.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086.46 : 3,125.56 = 1,621.70 : x
  2. Step 2: Convert to fraction form
    2,086.46/3,125.56 = 1,621.70/x
  3. Step 3: Cross multiply
    2,086.46x = 3,125.56 × 1,621.70
  4. Step 4: Simplify right side
    2,086.46x = 5,068,720.65
  5. Step 5: Solve for x
    x = 5,068,720.65/2,086.46
  6. Step 6: Final answer
    x = 2,429.34

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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.