Home / 2,790.28-4,185.56-1,059.04

Finding the Fourth Proportional to 2,790.28, 4,185.56 and 1,059.04

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Solution

The fourth proportional to 2,790.28, 4,185.56 and 1,059.04 is: 1,588.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.28 : 4,185.56 = 1,059.04 : x
  2. Step 2: Convert to fraction form
    2,790.28/4,185.56 = 1,059.04/x
  3. Step 3: Cross multiply
    2,790.28x = 4,185.56 × 1,059.04
  4. Step 4: Simplify right side
    2,790.28x = 4,432,675.46
  5. Step 5: Solve for x
    x = 4,432,675.46/2,790.28
  6. Step 6: Final answer
    x = 1,588.61

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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.