Home / 2,181.58-3,010.57-1,237.58

Finding the Fourth Proportional to 2,181.58, 3,010.57 and 1,237.58

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Solution

The fourth proportional to 2,181.58, 3,010.57 and 1,237.58 is: 1,707.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.58 : 3,010.57 = 1,237.58 : x
  2. Step 2: Convert to fraction form
    2,181.58/3,010.57 = 1,237.58/x
  3. Step 3: Cross multiply
    2,181.58x = 3,010.57 × 1,237.58
  4. Step 4: Simplify right side
    2,181.58x = 3,725,814.36
  5. Step 5: Solve for x
    x = 3,725,814.36/2,181.58
  6. Step 6: Final answer
    x = 1,707.85

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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.