Home / 2,306.10-3,181.86-1,297.58

Finding the Fourth Proportional to 2,306.10, 3,181.86 and 1,297.58

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Solution

The fourth proportional to 2,306.10, 3,181.86 and 1,297.58 is: 1,790.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,306.10 : 3,181.86 = 1,297.58 : x
  2. Step 2: Convert to fraction form
    2,306.10/3,181.86 = 1,297.58/x
  3. Step 3: Cross multiply
    2,306.10x = 3,181.86 × 1,297.58
  4. Step 4: Simplify right side
    2,306.10x = 4,128,725.85
  5. Step 5: Solve for x
    x = 4,128,725.85/2,306.10
  6. Step 6: Final answer
    x = 1,790.35

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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.