Home / 5,630.21-8,446.48-2,120.18

Finding the Fourth Proportional to 5,630.21, 8,446.48 and 2,120.18

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Solution

The fourth proportional to 5,630.21, 8,446.48 and 2,120.18 is: 3,180.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,630.21 : 8,446.48 = 2,120.18 : x
  2. Step 2: Convert to fraction form
    5,630.21/8,446.48 = 2,120.18/x
  3. Step 3: Cross multiply
    5,630.21x = 8,446.48 × 2,120.18
  4. Step 4: Simplify right side
    5,630.21x = 17,908,010.43
  5. Step 5: Solve for x
    x = 17,908,010.43/5,630.21
  6. Step 6: Final answer
    x = 3,180.70

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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.