Home / 3,390.12-4,674.83-2,328.80

Finding the Fourth Proportional to 3,390.12, 4,674.83 and 2,328.80

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Solution

The fourth proportional to 3,390.12, 4,674.83 and 2,328.80 is: 3,211.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.12 : 4,674.83 = 2,328.80 : x
  2. Step 2: Convert to fraction form
    3,390.12/4,674.83 = 2,328.80/x
  3. Step 3: Cross multiply
    3,390.12x = 4,674.83 × 2,328.80
  4. Step 4: Simplify right side
    3,390.12x = 10,886,709.09
  5. Step 5: Solve for x
    x = 10,886,709.09/3,390.12
  6. Step 6: Final answer
    x = 3,211.30

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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.