Home / 2,021.25-2,789.36-1,235.13

Finding the Fourth Proportional to 2,021.25, 2,789.36 and 1,235.13

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Solution

The fourth proportional to 2,021.25, 2,789.36 and 1,235.13 is: 1,704.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.25 : 2,789.36 = 1,235.13 : x
  2. Step 2: Convert to fraction form
    2,021.25/2,789.36 = 1,235.13/x
  3. Step 3: Cross multiply
    2,021.25x = 2,789.36 × 1,235.13
  4. Step 4: Simplify right side
    2,021.25x = 3,445,216.04
  5. Step 5: Solve for x
    x = 3,445,216.04/2,021.25
  6. Step 6: Final answer
    x = 1,704.50

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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.