Home / 3,406.10-5,109.15-3,187.40

Finding the Fourth Proportional to 3,406.10, 5,109.15 and 3,187.40

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Solution

The fourth proportional to 3,406.10, 5,109.15 and 3,187.40 is: 4,781.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406.10 : 5,109.15 = 3,187.40 : x
  2. Step 2: Convert to fraction form
    3,406.10/5,109.15 = 3,187.40/x
  3. Step 3: Cross multiply
    3,406.10x = 5,109.15 × 3,187.40
  4. Step 4: Simplify right side
    3,406.10x = 16,284,904.71
  5. Step 5: Solve for x
    x = 16,284,904.71/3,406.10
  6. Step 6: Final answer
    x = 4,781.10

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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.