Home / 2,148.66-3,220.20-1,051.56

Finding the Fourth Proportional to 2,148.66, 3,220.20 and 1,051.56

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Solution

The fourth proportional to 2,148.66, 3,220.20 and 1,051.56 is: 1,575.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.66 : 3,220.20 = 1,051.56 : x
  2. Step 2: Convert to fraction form
    2,148.66/3,220.20 = 1,051.56/x
  3. Step 3: Cross multiply
    2,148.66x = 3,220.20 × 1,051.56
  4. Step 4: Simplify right side
    2,148.66x = 3,386,233.51
  5. Step 5: Solve for x
    x = 3,386,233.51/2,148.66
  6. Step 6: Final answer
    x = 1,575.97

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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.