Home / 3,678.18-5,074.14-2,185.26

Finding the Fourth Proportional to 3,678.18, 5,074.14 and 2,185.26

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Solution

The fourth proportional to 3,678.18, 5,074.14 and 2,185.26 is: 3,014.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.18 : 5,074.14 = 2,185.26 : x
  2. Step 2: Convert to fraction form
    3,678.18/5,074.14 = 2,185.26/x
  3. Step 3: Cross multiply
    3,678.18x = 5,074.14 × 2,185.26
  4. Step 4: Simplify right side
    3,678.18x = 11,088,315.18
  5. Step 5: Solve for x
    x = 11,088,315.18/3,678.18
  6. Step 6: Final answer
    x = 3,014.62

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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.