Home / 2,606.36-3,910.76-1,218.00

Finding the Fourth Proportional to 2,606.36, 3,910.76 and 1,218.00

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Solution

The fourth proportional to 2,606.36, 3,910.76 and 1,218.00 is: 1,827.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,606.36 : 3,910.76 = 1,218.00 : x
  2. Step 2: Convert to fraction form
    2,606.36/3,910.76 = 1,218.00/x
  3. Step 3: Cross multiply
    2,606.36x = 3,910.76 × 1,218.00
  4. Step 4: Simplify right side
    2,606.36x = 4,763,325.67
  5. Step 5: Solve for x
    x = 4,763,325.67/2,606.36
  6. Step 6: Final answer
    x = 1,827.58

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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.