Home / 3,858.08-5,787.66-1,260.36

Finding the Fourth Proportional to 3,858.08, 5,787.66 and 1,260.36

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Solution

The fourth proportional to 3,858.08, 5,787.66 and 1,260.36 is: 1,890.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.08 : 5,787.66 = 1,260.36 : x
  2. Step 2: Convert to fraction form
    3,858.08/5,787.66 = 1,260.36/x
  3. Step 3: Cross multiply
    3,858.08x = 5,787.66 × 1,260.36
  4. Step 4: Simplify right side
    3,858.08x = 7,294,535.16
  5. Step 5: Solve for x
    x = 7,294,535.16/3,858.08
  6. Step 6: Final answer
    x = 1,890.72

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1.5x scale

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.