Home / 2,491.95-3,439.20-1,443.81

Finding the Fourth Proportional to 2,491.95, 3,439.20 and 1,443.81

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Solution

The fourth proportional to 2,491.95, 3,439.20 and 1,443.81 is: 1,992.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.95 : 3,439.20 = 1,443.81 : x
  2. Step 2: Convert to fraction form
    2,491.95/3,439.20 = 1,443.81/x
  3. Step 3: Cross multiply
    2,491.95x = 3,439.20 × 1,443.81
  4. Step 4: Simplify right side
    2,491.95x = 4,965,551.35
  5. Step 5: Solve for x
    x = 4,965,551.35/2,491.95
  6. Step 6: Final answer
    x = 1,992.64

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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.