Home / 4,983.63-7,478.68-1,905.63

Finding the Fourth Proportional to 4,983.63, 7,478.68 and 1,905.63

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Solution

The fourth proportional to 4,983.63, 7,478.68 and 1,905.63 is: 2,859.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,983.63 : 7,478.68 = 1,905.63 : x
  2. Step 2: Convert to fraction form
    4,983.63/7,478.68 = 1,905.63/x
  3. Step 3: Cross multiply
    4,983.63x = 7,478.68 × 1,905.63
  4. Step 4: Simplify right side
    4,983.63x = 14,251,596.97
  5. Step 5: Solve for x
    x = 14,251,596.97/4,983.63
  6. Step 6: Final answer
    x = 2,859.68

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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.