Home / 5,628.48-8,441.52-1,679.20

Finding the Fourth Proportional to 5,628.48, 8,441.52 and 1,679.20

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Solution

The fourth proportional to 5,628.48, 8,441.52 and 1,679.20 is: 2,518.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.48 : 8,441.52 = 1,679.20 : x
  2. Step 2: Convert to fraction form
    5,628.48/8,441.52 = 1,679.20/x
  3. Step 3: Cross multiply
    5,628.48x = 8,441.52 × 1,679.20
  4. Step 4: Simplify right side
    5,628.48x = 14,175,000.38
  5. Step 5: Solve for x
    x = 14,175,000.38/5,628.48
  6. Step 6: Final answer
    x = 2,518.44

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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.