Home / 1,868.67-2,785.08-1,787.27

Finding the Fourth Proportional to 1,868.67, 2,785.08 and 1,787.27

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Solution

The fourth proportional to 1,868.67, 2,785.08 and 1,787.27 is: 2,663.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.67 : 2,785.08 = 1,787.27 : x
  2. Step 2: Convert to fraction form
    1,868.67/2,785.08 = 1,787.27/x
  3. Step 3: Cross multiply
    1,868.67x = 2,785.08 × 1,787.27
  4. Step 4: Simplify right side
    1,868.67x = 4,977,682.71
  5. Step 5: Solve for x
    x = 4,977,682.71/1,868.67
  6. Step 6: Final answer
    x = 2,663.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.