Home / 3,256.96-4,886.81-1,407.12

Finding the Fourth Proportional to 3,256.96, 4,886.81 and 1,407.12

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Solution

The fourth proportional to 3,256.96, 4,886.81 and 1,407.12 is: 2,111.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,256.96 : 4,886.81 = 1,407.12 : x
  2. Step 2: Convert to fraction form
    3,256.96/4,886.81 = 1,407.12/x
  3. Step 3: Cross multiply
    3,256.96x = 4,886.81 × 1,407.12
  4. Step 4: Simplify right side
    3,256.96x = 6,876,321.05
  5. Step 5: Solve for x
    x = 6,876,321.05/3,256.96
  6. Step 6: Final answer
    x = 2,111.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.