Home / 3,421.20-4,722.43-2,005.35

Finding the Fourth Proportional to 3,421.20, 4,722.43 and 2,005.35

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Solution

The fourth proportional to 3,421.20, 4,722.43 and 2,005.35 is: 2,768.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.20 : 4,722.43 = 2,005.35 : x
  2. Step 2: Convert to fraction form
    3,421.20/4,722.43 = 2,005.35/x
  3. Step 3: Cross multiply
    3,421.20x = 4,722.43 × 2,005.35
  4. Step 4: Simplify right side
    3,421.20x = 9,470,125.00
  5. Step 5: Solve for x
    x = 9,470,125.00/3,421.20
  6. Step 6: Final answer
    x = 2,768.07

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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.