Home / 1,581.48-2,181.24-1,511.73

Finding the Fourth Proportional to 1,581.48, 2,181.24 and 1,511.73

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Solution

The fourth proportional to 1,581.48, 2,181.24 and 1,511.73 is: 2,085.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.48 : 2,181.24 = 1,511.73 : x
  2. Step 2: Convert to fraction form
    1,581.48/2,181.24 = 1,511.73/x
  3. Step 3: Cross multiply
    1,581.48x = 2,181.24 × 1,511.73
  4. Step 4: Simplify right side
    1,581.48x = 3,297,445.95
  5. Step 5: Solve for x
    x = 3,297,445.95/1,581.48
  6. Step 6: Final answer
    x = 2,085.04

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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.