Home / 2,787.34-4,177.77-1,488.10

Finding the Fourth Proportional to 2,787.34, 4,177.77 and 1,488.10

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Solution

The fourth proportional to 2,787.34, 4,177.77 and 1,488.10 is: 2,230.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.34 : 4,177.77 = 1,488.10 : x
  2. Step 2: Convert to fraction form
    2,787.34/4,177.77 = 1,488.10/x
  3. Step 3: Cross multiply
    2,787.34x = 4,177.77 × 1,488.10
  4. Step 4: Simplify right side
    2,787.34x = 6,216,939.54
  5. Step 5: Solve for x
    x = 6,216,939.54/2,787.34
  6. Step 6: Final answer
    x = 2,230.42

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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.