Home / 2,254.93-3,111.86-1,246.64

Finding the Fourth Proportional to 2,254.93, 3,111.86 and 1,246.64

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Solution

The fourth proportional to 2,254.93, 3,111.86 and 1,246.64 is: 1,720.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.93 : 3,111.86 = 1,246.64 : x
  2. Step 2: Convert to fraction form
    2,254.93/3,111.86 = 1,246.64/x
  3. Step 3: Cross multiply
    2,254.93x = 3,111.86 × 1,246.64
  4. Step 4: Simplify right side
    2,254.93x = 3,879,363.70
  5. Step 5: Solve for x
    x = 3,879,363.70/2,254.93
  6. Step 6: Final answer
    x = 1,720.39

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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.