Home / 2,800.28-4,200.56-1,069.04

Finding the Fourth Proportional to 2,800.28, 4,200.56 and 1,069.04

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Solution

The fourth proportional to 2,800.28, 4,200.56 and 1,069.04 is: 1,603.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800.28 : 4,200.56 = 1,069.04 : x
  2. Step 2: Convert to fraction form
    2,800.28/4,200.56 = 1,069.04/x
  3. Step 3: Cross multiply
    2,800.28x = 4,200.56 × 1,069.04
  4. Step 4: Simplify right side
    2,800.28x = 4,490,566.66
  5. Step 5: Solve for x
    x = 4,490,566.66/2,800.28
  6. Step 6: Final answer
    x = 1,603.61

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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.