Home / 2,911.64-4,366.40-1,267.79

Finding the Fourth Proportional to 2,911.64, 4,366.40 and 1,267.79

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Solution

The fourth proportional to 2,911.64, 4,366.40 and 1,267.79 is: 1,901.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.64 : 4,366.40 = 1,267.79 : x
  2. Step 2: Convert to fraction form
    2,911.64/4,366.40 = 1,267.79/x
  3. Step 3: Cross multiply
    2,911.64x = 4,366.40 × 1,267.79
  4. Step 4: Simplify right side
    2,911.64x = 5,535,650.09
  5. Step 5: Solve for x
    x = 5,535,650.09/2,911.64
  6. Step 6: Final answer
    x = 1,901.22

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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.