Home / 2,181.99-3,011.58-1,715.43

Finding the Fourth Proportional to 2,181.99, 3,011.58 and 1,715.43

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Solution

The fourth proportional to 2,181.99, 3,011.58 and 1,715.43 is: 2,367.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.99 : 3,011.58 = 1,715.43 : x
  2. Step 2: Convert to fraction form
    2,181.99/3,011.58 = 1,715.43/x
  3. Step 3: Cross multiply
    2,181.99x = 3,011.58 × 1,715.43
  4. Step 4: Simplify right side
    2,181.99x = 5,166,154.68
  5. Step 5: Solve for x
    x = 5,166,154.68/2,181.99
  6. Step 6: Final answer
    x = 2,367.63

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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.