Home / 2,107.30-3,158.58-1,283.77

Finding the Fourth Proportional to 2,107.30, 3,158.58 and 1,283.77

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Solution

The fourth proportional to 2,107.30, 3,158.58 and 1,283.77 is: 1,924.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.30 : 3,158.58 = 1,283.77 : x
  2. Step 2: Convert to fraction form
    2,107.30/3,158.58 = 1,283.77/x
  3. Step 3: Cross multiply
    2,107.30x = 3,158.58 × 1,283.77
  4. Step 4: Simplify right side
    2,107.30x = 4,054,890.25
  5. Step 5: Solve for x
    x = 4,054,890.25/2,107.30
  6. Step 6: Final answer
    x = 1,924.21

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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.