Home / 3,406.10-5,109.15-2,830.10

Finding the Fourth Proportional to 3,406.10, 5,109.15 and 2,830.10

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Solution

The fourth proportional to 3,406.10, 5,109.15 and 2,830.10 is: 4,245.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406.10 : 5,109.15 = 2,830.10 : x
  2. Step 2: Convert to fraction form
    3,406.10/5,109.15 = 2,830.10/x
  3. Step 3: Cross multiply
    3,406.10x = 5,109.15 × 2,830.10
  4. Step 4: Simplify right side
    3,406.10x = 14,459,405.42
  5. Step 5: Solve for x
    x = 14,459,405.42/3,406.10
  6. Step 6: Final answer
    x = 4,245.15

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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.