Home / 8,285.45-12,430.10-2,738.46

Finding the Fourth Proportional to 8,285.45, 12,430.10 and 2,738.46

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Solution

The fourth proportional to 8,285.45, 12,430.10 and 2,738.46 is: 4,108.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.45 : 12,430.10 = 2,738.46 : x
  2. Step 2: Convert to fraction form
    8,285.45/12,430.10 = 2,738.46/x
  3. Step 3: Cross multiply
    8,285.45x = 12,430.10 × 2,738.46
  4. Step 4: Simplify right side
    8,285.45x = 34,039,338.49
  5. Step 5: Solve for x
    x = 34,039,338.49/8,285.45
  6. Step 6: Final answer
    x = 4,108.33

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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.