Home / 2,492.12-3,438.30-1,608.51

Finding the Fourth Proportional to 2,492.12, 3,438.30 and 1,608.51

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Solution

The fourth proportional to 2,492.12, 3,438.30 and 1,608.51 is: 2,219.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,492.12 : 3,438.30 = 1,608.51 : x
  2. Step 2: Convert to fraction form
    2,492.12/3,438.30 = 1,608.51/x
  3. Step 3: Cross multiply
    2,492.12x = 3,438.30 × 1,608.51
  4. Step 4: Simplify right side
    2,492.12x = 5,530,539.93
  5. Step 5: Solve for x
    x = 5,530,539.93/2,492.12
  6. Step 6: Final answer
    x = 2,219.21

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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.