Home / 3,482.21-5,222.25-1,260.78

Finding the Fourth Proportional to 3,482.21, 5,222.25 and 1,260.78

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Solution

The fourth proportional to 3,482.21, 5,222.25 and 1,260.78 is: 1,890.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,482.21 : 5,222.25 = 1,260.78 : x
  2. Step 2: Convert to fraction form
    3,482.21/5,222.25 = 1,260.78/x
  3. Step 3: Cross multiply
    3,482.21x = 5,222.25 × 1,260.78
  4. Step 4: Simplify right side
    3,482.21x = 6,584,088.77
  5. Step 5: Solve for x
    x = 6,584,088.77/3,482.21
  6. Step 6: Final answer
    x = 1,890.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.