Home / 5,427.42-8,141.72-1,728.78

Finding the Fourth Proportional to 5,427.42, 8,141.72 and 1,728.78

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Solution

The fourth proportional to 5,427.42, 8,141.72 and 1,728.78 is: 2,593.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.42 : 8,141.72 = 1,728.78 : x
  2. Step 2: Convert to fraction form
    5,427.42/8,141.72 = 1,728.78/x
  3. Step 3: Cross multiply
    5,427.42x = 8,141.72 × 1,728.78
  4. Step 4: Simplify right side
    5,427.42x = 14,075,242.70
  5. Step 5: Solve for x
    x = 14,075,242.70/5,427.42
  6. Step 6: Final answer
    x = 2,593.36

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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.