Home / 2,991.53-4,128.47-1,732.59

Finding the Fourth Proportional to 2,991.53, 4,128.47 and 1,732.59

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Solution

The fourth proportional to 2,991.53, 4,128.47 and 1,732.59 is: 2,391.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.53 : 4,128.47 = 1,732.59 : x
  2. Step 2: Convert to fraction form
    2,991.53/4,128.47 = 1,732.59/x
  3. Step 3: Cross multiply
    2,991.53x = 4,128.47 × 1,732.59
  4. Step 4: Simplify right side
    2,991.53x = 7,152,943.67
  5. Step 5: Solve for x
    x = 7,152,943.67/2,991.53
  6. Step 6: Final answer
    x = 2,391.06

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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.