Home / 2,271.81-3,400.70-1,939.71

Finding the Fourth Proportional to 2,271.81, 3,400.70 and 1,939.71

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Solution

The fourth proportional to 2,271.81, 3,400.70 and 1,939.71 is: 2,903.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.81 : 3,400.70 = 1,939.71 : x
  2. Step 2: Convert to fraction form
    2,271.81/3,400.70 = 1,939.71/x
  3. Step 3: Cross multiply
    2,271.81x = 3,400.70 × 1,939.71
  4. Step 4: Simplify right side
    2,271.81x = 6,596,385.76
  5. Step 5: Solve for x
    x = 6,596,385.76/2,271.81
  6. Step 6: Final answer
    x = 2,903.58

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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.