Home / 2,025.20-2,789.16-1,558.64

Finding the Fourth Proportional to 2,025.20, 2,789.16 and 1,558.64

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Solution

The fourth proportional to 2,025.20, 2,789.16 and 1,558.64 is: 2,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,025.20 : 2,789.16 = 1,558.64 : x
  2. Step 2: Convert to fraction form
    2,025.20/2,789.16 = 1,558.64/x
  3. Step 3: Cross multiply
    2,025.20x = 2,789.16 × 1,558.64
  4. Step 4: Simplify right side
    2,025.20x = 4,347,296.34
  5. Step 5: Solve for x
    x = 4,347,296.34/2,025.20
  6. Step 6: Final answer
    x = 2,146.60

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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.