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Finding the Fourth Proportional to 2,800.58, 4,199.04 and 1,340.55

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Solution

The fourth proportional to 2,800.58, 4,199.04 and 1,340.55 is: 2,009.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800.58 : 4,199.04 = 1,340.55 : x
  2. Step 2: Convert to fraction form
    2,800.58/4,199.04 = 1,340.55/x
  3. Step 3: Cross multiply
    2,800.58x = 4,199.04 × 1,340.55
  4. Step 4: Simplify right side
    2,800.58x = 5,629,023.07
  5. Step 5: Solve for x
    x = 5,629,023.07/2,800.58
  6. Step 6: Final answer
    x = 2,009.95

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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.