Home / 3,255.90-4,883.64-1,405.71

Finding the Fourth Proportional to 3,255.90, 4,883.64 and 1,405.71

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Solution

The fourth proportional to 3,255.90, 4,883.64 and 1,405.71 is: 2,108.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.90 : 4,883.64 = 1,405.71 : x
  2. Step 2: Convert to fraction form
    3,255.90/4,883.64 = 1,405.71/x
  3. Step 3: Cross multiply
    3,255.90x = 4,883.64 × 1,405.71
  4. Step 4: Simplify right side
    3,255.90x = 6,864,981.58
  5. Step 5: Solve for x
    x = 6,864,981.58/3,255.90
  6. Step 6: Final answer
    x = 2,108.48

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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.