Home / 3,389.10-5,083.59-1,415.79

Finding the Fourth Proportional to 3,389.10, 5,083.59 and 1,415.79

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Solution

The fourth proportional to 3,389.10, 5,083.59 and 1,415.79 is: 2,123.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.10 : 5,083.59 = 1,415.79 : x
  2. Step 2: Convert to fraction form
    3,389.10/5,083.59 = 1,415.79/x
  3. Step 3: Cross multiply
    3,389.10x = 5,083.59 × 1,415.79
  4. Step 4: Simplify right side
    3,389.10x = 7,197,295.89
  5. Step 5: Solve for x
    x = 7,197,295.89/3,389.10
  6. Step 6: Final answer
    x = 2,123.66

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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.