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Finding the Fourth Proportional to 4,921.65, 7,380.36 and 1,800.63

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Solution

The fourth proportional to 4,921.65, 7,380.36 and 1,800.63 is: 2,700.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.65 : 7,380.36 = 1,800.63 : x
  2. Step 2: Convert to fraction form
    4,921.65/7,380.36 = 1,800.63/x
  3. Step 3: Cross multiply
    4,921.65x = 7,380.36 × 1,800.63
  4. Step 4: Simplify right side
    4,921.65x = 13,289,297.63
  5. Step 5: Solve for x
    x = 13,289,297.63/4,921.65
  6. Step 6: Final answer
    x = 2,700.17

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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.