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Finding the Fourth Proportional to 3,728.89, 5,583.36 and 1,970.26

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Solution

The fourth proportional to 3,728.89, 5,583.36 and 1,970.26 is: 2,950.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.89 : 5,583.36 = 1,970.26 : x
  2. Step 2: Convert to fraction form
    3,728.89/5,583.36 = 1,970.26/x
  3. Step 3: Cross multiply
    3,728.89x = 5,583.36 × 1,970.26
  4. Step 4: Simplify right side
    3,728.89x = 11,000,670.87
  5. Step 5: Solve for x
    x = 11,000,670.87/3,728.89
  6. Step 6: Final answer
    x = 2,950.12

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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.