Home / 1,211.22-1,673.01-1,053.54

Finding the Fourth Proportional to 1,211.22, 1,673.01 and 1,053.54

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Solution

The fourth proportional to 1,211.22, 1,673.01 and 1,053.54 is: 1,455.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211.22 : 1,673.01 = 1,053.54 : x
  2. Step 2: Convert to fraction form
    1,211.22/1,673.01 = 1,053.54/x
  3. Step 3: Cross multiply
    1,211.22x = 1,673.01 × 1,053.54
  4. Step 4: Simplify right side
    1,211.22x = 1,762,582.96
  5. Step 5: Solve for x
    x = 1,762,582.96/1,211.22
  6. Step 6: Final answer
    x = 1,455.21

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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.