Home / 5,626.80-8,440.16-1,678.02

Finding the Fourth Proportional to 5,626.80, 8,440.16 and 1,678.02

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Solution

The fourth proportional to 5,626.80, 8,440.16 and 1,678.02 is: 2,517.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,626.80 : 8,440.16 = 1,678.02 : x
  2. Step 2: Convert to fraction form
    5,626.80/8,440.16 = 1,678.02/x
  3. Step 3: Cross multiply
    5,626.80x = 8,440.16 × 1,678.02
  4. Step 4: Simplify right side
    5,626.80x = 14,162,748.89
  5. Step 5: Solve for x
    x = 14,162,748.89/5,626.80
  6. Step 6: Final answer
    x = 2,517.02

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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.