Home / 2,118.48-3,174.96-1,020.60

Finding the Fourth Proportional to 2,118.48, 3,174.96 and 1,020.60

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Solution

The fourth proportional to 2,118.48, 3,174.96 and 1,020.60 is: 1,529.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.48 : 3,174.96 = 1,020.60 : x
  2. Step 2: Convert to fraction form
    2,118.48/3,174.96 = 1,020.60/x
  3. Step 3: Cross multiply
    2,118.48x = 3,174.96 × 1,020.60
  4. Step 4: Simplify right side
    2,118.48x = 3,240,364.18
  5. Step 5: Solve for x
    x = 3,240,364.18/2,118.48
  6. Step 6: Final answer
    x = 1,529.57

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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.