Home / 3,181.42-4,772.82-1,307.32

Finding the Fourth Proportional to 3,181.42, 4,772.82 and 1,307.32

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Solution

The fourth proportional to 3,181.42, 4,772.82 and 1,307.32 is: 1,961.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.42 : 4,772.82 = 1,307.32 : x
  2. Step 2: Convert to fraction form
    3,181.42/4,772.82 = 1,307.32/x
  3. Step 3: Cross multiply
    3,181.42x = 4,772.82 × 1,307.32
  4. Step 4: Simplify right side
    3,181.42x = 6,239,612.79
  5. Step 5: Solve for x
    x = 6,239,612.79/3,181.42
  6. Step 6: Final answer
    x = 1,961.27

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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.