Home / 2,211.50-3,051.81-1,203.18

Finding the Fourth Proportional to 2,211.50, 3,051.81 and 1,203.18

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Solution

The fourth proportional to 2,211.50, 3,051.81 and 1,203.18 is: 1,660.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.50 : 3,051.81 = 1,203.18 : x
  2. Step 2: Convert to fraction form
    2,211.50/3,051.81 = 1,203.18/x
  3. Step 3: Cross multiply
    2,211.50x = 3,051.81 × 1,203.18
  4. Step 4: Simplify right side
    2,211.50x = 3,671,881.69
  5. Step 5: Solve for x
    x = 3,671,881.69/2,211.50
  6. Step 6: Final answer
    x = 1,660.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.