Home / 2,491.07-3,438.29-1,443.74

Finding the Fourth Proportional to 2,491.07, 3,438.29 and 1,443.74

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Solution

The fourth proportional to 2,491.07, 3,438.29 and 1,443.74 is: 1,992.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.07 : 3,438.29 = 1,443.74 : x
  2. Step 2: Convert to fraction form
    2,491.07/3,438.29 = 1,443.74/x
  3. Step 3: Cross multiply
    2,491.07x = 3,438.29 × 1,443.74
  4. Step 4: Simplify right side
    2,491.07x = 4,963,989.59
  5. Step 5: Solve for x
    x = 4,963,989.59/2,491.07
  6. Step 6: Final answer
    x = 1,992.71

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1.5x scale

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.