Home / 2,750.30-4,125.64-1,106.85

Finding the Fourth Proportional to 2,750.30, 4,125.64 and 1,106.85

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Solution

The fourth proportional to 2,750.30, 4,125.64 and 1,106.85 is: 1,660.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.30 : 4,125.64 = 1,106.85 : x
  2. Step 2: Convert to fraction form
    2,750.30/4,125.64 = 1,106.85/x
  3. Step 3: Cross multiply
    2,750.30x = 4,125.64 × 1,106.85
  4. Step 4: Simplify right side
    2,750.30x = 4,566,464.63
  5. Step 5: Solve for x
    x = 4,566,464.63/2,750.30
  6. Step 6: Final answer
    x = 1,660.35

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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.