Home / 3,210.72-4,428.36-2,329.44

Finding the Fourth Proportional to 3,210.72, 4,428.36 and 2,329.44

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Solution

The fourth proportional to 3,210.72, 4,428.36 and 2,329.44 is: 3,212.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.72 : 4,428.36 = 2,329.44 : x
  2. Step 2: Convert to fraction form
    3,210.72/4,428.36 = 2,329.44/x
  3. Step 3: Cross multiply
    3,210.72x = 4,428.36 × 2,329.44
  4. Step 4: Simplify right side
    3,210.72x = 10,315,598.92
  5. Step 5: Solve for x
    x = 10,315,598.92/3,210.72
  6. Step 6: Final answer
    x = 3,212.86

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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.