Home / 2,403.63-3,318.12-1,608.21

Finding the Fourth Proportional to 2,403.63, 3,318.12 and 1,608.21

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Solution

The fourth proportional to 2,403.63, 3,318.12 and 1,608.21 is: 2,220.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.63 : 3,318.12 = 1,608.21 : x
  2. Step 2: Convert to fraction form
    2,403.63/3,318.12 = 1,608.21/x
  3. Step 3: Cross multiply
    2,403.63x = 3,318.12 × 1,608.21
  4. Step 4: Simplify right side
    2,403.63x = 5,336,233.77
  5. Step 5: Solve for x
    x = 5,336,233.77/2,403.63
  6. Step 6: Final answer
    x = 2,220.07

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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.