Home / 4,800.70-7,201.40-1,680.36

Finding the Fourth Proportional to 4,800.70, 7,201.40 and 1,680.36

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Solution

The fourth proportional to 4,800.70, 7,201.40 and 1,680.36 is: 2,520.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,800.70 : 7,201.40 = 1,680.36 : x
  2. Step 2: Convert to fraction form
    4,800.70/7,201.40 = 1,680.36/x
  3. Step 3: Cross multiply
    4,800.70x = 7,201.40 × 1,680.36
  4. Step 4: Simplify right side
    4,800.70x = 12,100,944.50
  5. Step 5: Solve for x
    x = 12,100,944.50/4,800.70
  6. Step 6: Final answer
    x = 2,520.66

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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.