Home / 3,416.25-5,125.59-1,686.09

Finding the Fourth Proportional to 3,416.25, 5,125.59 and 1,686.09

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Solution

The fourth proportional to 3,416.25, 5,125.59 and 1,686.09 is: 2,529.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.25 : 5,125.59 = 1,686.09 : x
  2. Step 2: Convert to fraction form
    3,416.25/5,125.59 = 1,686.09/x
  3. Step 3: Cross multiply
    3,416.25x = 5,125.59 × 1,686.09
  4. Step 4: Simplify right side
    3,416.25x = 8,642,206.04
  5. Step 5: Solve for x
    x = 8,642,206.04/3,416.25
  6. Step 6: Final answer
    x = 2,529.73

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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.