Home / 2,469.18-3,407.84-1,421.04

Finding the Fourth Proportional to 2,469.18, 3,407.84 and 1,421.04

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Solution

The fourth proportional to 2,469.18, 3,407.84 and 1,421.04 is: 1,961.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,469.18 : 3,407.84 = 1,421.04 : x
  2. Step 2: Convert to fraction form
    2,469.18/3,407.84 = 1,421.04/x
  3. Step 3: Cross multiply
    2,469.18x = 3,407.84 × 1,421.04
  4. Step 4: Simplify right side
    2,469.18x = 4,842,669.85
  5. Step 5: Solve for x
    x = 4,842,669.85/2,469.18
  6. Step 6: Final answer
    x = 1,961.25

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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.