Home / 2,020.88-2,788.86-1,235.36

Finding the Fourth Proportional to 2,020.88, 2,788.86 and 1,235.36

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Solution

The fourth proportional to 2,020.88, 2,788.86 and 1,235.36 is: 1,704.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.88 : 2,788.86 = 1,235.36 : x
  2. Step 2: Convert to fraction form
    2,020.88/2,788.86 = 1,235.36/x
  3. Step 3: Cross multiply
    2,020.88x = 2,788.86 × 1,235.36
  4. Step 4: Simplify right side
    2,020.88x = 3,445,225.97
  5. Step 5: Solve for x
    x = 3,445,225.97/2,020.88
  6. Step 6: Final answer
    x = 1,704.82

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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.