Home / 1,807.31-2,706.11-1,284.56

Finding the Fourth Proportional to 1,807.31, 2,706.11 and 1,284.56

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Solution

The fourth proportional to 1,807.31, 2,706.11 and 1,284.56 is: 1,923.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,807.31 : 2,706.11 = 1,284.56 : x
  2. Step 2: Convert to fraction form
    1,807.31/2,706.11 = 1,284.56/x
  3. Step 3: Cross multiply
    1,807.31x = 2,706.11 × 1,284.56
  4. Step 4: Simplify right side
    1,807.31x = 3,476,155.67
  5. Step 5: Solve for x
    x = 3,476,155.67/1,807.31
  6. Step 6: Final answer
    x = 1,923.38

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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.