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Finding the Fourth Proportional to 3,510, 5,265.93 and 1,561.78

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Solution

The fourth proportional to 3,510, 5,265.93 and 1,561.78 is: 2,343.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,510 : 5,265.93 = 1,561.78 : x
  2. Step 2: Convert to fraction form
    3,510/5,265.93 = 1,561.78/x
  3. Step 3: Cross multiply
    3,510x = 5,265.93 × 1,561.78
  4. Step 4: Simplify right side
    3,510x = 8,224,224.16
  5. Step 5: Solve for x
    x = 8,224,224.16/3,510
  6. Step 6: Final answer
    x = 2,343.08

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.