Home / 4,101.15-6,155.41-1,911.12

Finding the Fourth Proportional to 4,101.15, 6,155.41 and 1,911.12

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Solution

The fourth proportional to 4,101.15, 6,155.41 and 1,911.12 is: 2,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,101.15 : 6,155.41 = 1,911.12 : x
  2. Step 2: Convert to fraction form
    4,101.15/6,155.41 = 1,911.12/x
  3. Step 3: Cross multiply
    4,101.15x = 6,155.41 × 1,911.12
  4. Step 4: Simplify right side
    4,101.15x = 11,763,727.16
  5. Step 5: Solve for x
    x = 11,763,727.16/4,101.15
  6. Step 6: Final answer
    x = 2,868.40

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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.