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Finding the Fourth Proportional to 5,453.06, 8,181 and 1,557.77

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Solution

The fourth proportional to 5,453.06, 8,181 and 1,557.77 is: 2,337.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,453.06 : 8,181 = 1,557.77 : x
  2. Step 2: Convert to fraction form
    5,453.06/8,181 = 1,557.77/x
  3. Step 3: Cross multiply
    5,453.06x = 8,181 × 1,557.77
  4. Step 4: Simplify right side
    5,453.06x = 12,744,075.47
  5. Step 5: Solve for x
    x = 12,744,075.47/5,453.06
  6. Step 6: Final answer
    x = 2,337.05

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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.