Home / 2,218.44-3,060.18-1,389

Finding the Fourth Proportional to 2,218.44, 3,060.18 and 1,389

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Solution

The fourth proportional to 2,218.44, 3,060.18 and 1,389 is: 1,916.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.44 : 3,060.18 = 1,389 : x
  2. Step 2: Convert to fraction form
    2,218.44/3,060.18 = 1,389/x
  3. Step 3: Cross multiply
    2,218.44x = 3,060.18 × 1,389
  4. Step 4: Simplify right side
    2,218.44x = 4,250,590.02
  5. Step 5: Solve for x
    x = 4,250,590.02/2,218.44
  6. Step 6: Final answer
    x = 1,916.03

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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.