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Finding the Fourth Proportional to 1,654.37, 2,482.55 and 614.20

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Solution

The fourth proportional to 1,654.37, 2,482.55 and 614.20 is: 921.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,654.37 : 2,482.55 = 614.20 : x
  2. Step 2: Convert to fraction form
    1,654.37/2,482.55 = 614.20/x
  3. Step 3: Cross multiply
    1,654.37x = 2,482.55 × 614.20
  4. Step 4: Simplify right side
    1,654.37x = 1,524,782.21
  5. Step 5: Solve for x
    x = 1,524,782.21/1,654.37
  6. Step 6: Final answer
    x = 921.67

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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.