Home / 2,025.12-2,794.60-1,128.84

Finding the Fourth Proportional to 2,025.12, 2,794.60 and 1,128.84

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Solution

The fourth proportional to 2,025.12, 2,794.60 and 1,128.84 is: 1,557.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,025.12 : 2,794.60 = 1,128.84 : x
  2. Step 2: Convert to fraction form
    2,025.12/2,794.60 = 1,128.84/x
  3. Step 3: Cross multiply
    2,025.12x = 2,794.60 × 1,128.84
  4. Step 4: Simplify right side
    2,025.12x = 3,154,656.26
  5. Step 5: Solve for x
    x = 3,154,656.26/2,025.12
  6. Step 6: Final answer
    x = 1,557.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.