Home / 2,455.49-3,389.73-1,571.81

Finding the Fourth Proportional to 2,455.49, 3,389.73 and 1,571.81

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Solution

The fourth proportional to 2,455.49, 3,389.73 and 1,571.81 is: 2,169.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.49 : 3,389.73 = 1,571.81 : x
  2. Step 2: Convert to fraction form
    2,455.49/3,389.73 = 1,571.81/x
  3. Step 3: Cross multiply
    2,455.49x = 3,389.73 × 1,571.81
  4. Step 4: Simplify right side
    2,455.49x = 5,328,000.46
  5. Step 5: Solve for x
    x = 5,328,000.46/2,455.49
  6. Step 6: Final answer
    x = 2,169.83

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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.