Home / 1,608.80-2,217.58-1,313.56

Finding the Fourth Proportional to 1,608.80, 2,217.58 and 1,313.56

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Solution

The fourth proportional to 1,608.80, 2,217.58 and 1,313.56 is: 1,810.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.80 : 2,217.58 = 1,313.56 : x
  2. Step 2: Convert to fraction form
    1,608.80/2,217.58 = 1,313.56/x
  3. Step 3: Cross multiply
    1,608.80x = 2,217.58 × 1,313.56
  4. Step 4: Simplify right side
    1,608.80x = 2,912,924.38
  5. Step 5: Solve for x
    x = 2,912,924.38/1,608.80
  6. Step 6: Final answer
    x = 1,810.62

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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.