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Finding the Fourth Proportional to 5,482.85, 8,215.05 and 3,019.40

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Solution

The fourth proportional to 5,482.85, 8,215.05 and 3,019.40 is: 4,524.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,482.85 : 8,215.05 = 3,019.40 : x
  2. Step 2: Convert to fraction form
    5,482.85/8,215.05 = 3,019.40/x
  3. Step 3: Cross multiply
    5,482.85x = 8,215.05 × 3,019.40
  4. Step 4: Simplify right side
    5,482.85x = 24,804,521.97
  5. Step 5: Solve for x
    x = 24,804,521.97/5,482.85
  6. Step 6: Final answer
    x = 4,524.02

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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.