Home / 2,911.16-4,362.40-1,266.81

Finding the Fourth Proportional to 2,911.16, 4,362.40 and 1,266.81

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Solution

The fourth proportional to 2,911.16, 4,362.40 and 1,266.81 is: 1,898.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.16 : 4,362.40 = 1,266.81 : x
  2. Step 2: Convert to fraction form
    2,911.16/4,362.40 = 1,266.81/x
  3. Step 3: Cross multiply
    2,911.16x = 4,362.40 × 1,266.81
  4. Step 4: Simplify right side
    2,911.16x = 5,526,331.94
  5. Step 5: Solve for x
    x = 5,526,331.94/2,911.16
  6. Step 6: Final answer
    x = 1,898.33

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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.