Home / 2,911.05-4,365.62-1,267.11

Finding the Fourth Proportional to 2,911.05, 4,365.62 and 1,267.11

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Solution

The fourth proportional to 2,911.05, 4,365.62 and 1,267.11 is: 1,900.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.05 : 4,365.62 = 1,267.11 : x
  2. Step 2: Convert to fraction form
    2,911.05/4,365.62 = 1,267.11/x
  3. Step 3: Cross multiply
    2,911.05x = 4,365.62 × 1,267.11
  4. Step 4: Simplify right side
    2,911.05x = 5,531,720.76
  5. Step 5: Solve for x
    x = 5,531,720.76/2,911.05
  6. Step 6: Final answer
    x = 1,900.25

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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.