Home / 3,210.23-4,433.94-2,790.45

Finding the Fourth Proportional to 3,210.23, 4,433.94 and 2,790.45

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Solution

The fourth proportional to 3,210.23, 4,433.94 and 2,790.45 is: 3,854.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.23 : 4,433.94 = 2,790.45 : x
  2. Step 2: Convert to fraction form
    3,210.23/4,433.94 = 2,790.45/x
  3. Step 3: Cross multiply
    3,210.23x = 4,433.94 × 2,790.45
  4. Step 4: Simplify right side
    3,210.23x = 12,372,687.87
  5. Step 5: Solve for x
    x = 12,372,687.87/3,210.23
  6. Step 6: Final answer
    x = 3,854.14

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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.