Home / 2,631.94-3,947.93-1,807.71

Finding the Fourth Proportional to 2,631.94, 3,947.93 and 1,807.71

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Solution

The fourth proportional to 2,631.94, 3,947.93 and 1,807.71 is: 2,711.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.94 : 3,947.93 = 1,807.71 : x
  2. Step 2: Convert to fraction form
    2,631.94/3,947.93 = 1,807.71/x
  3. Step 3: Cross multiply
    2,631.94x = 3,947.93 × 1,807.71
  4. Step 4: Simplify right side
    2,631.94x = 7,136,713.37
  5. Step 5: Solve for x
    x = 7,136,713.37/2,631.94
  6. Step 6: Final answer
    x = 2,711.58

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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.