Home / 3,890.08-5,838-2,160.16

Finding the Fourth Proportional to 3,890.08, 5,838 and 2,160.16

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Solution

The fourth proportional to 3,890.08, 5,838 and 2,160.16 is: 3,241.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.08 : 5,838 = 2,160.16 : x
  2. Step 2: Convert to fraction form
    3,890.08/5,838 = 2,160.16/x
  3. Step 3: Cross multiply
    3,890.08x = 5,838 × 2,160.16
  4. Step 4: Simplify right side
    3,890.08x = 12,611,014.08
  5. Step 5: Solve for x
    x = 12,611,014.08/3,890.08
  6. Step 6: Final answer
    x = 3,241.84

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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.