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Finding the Fourth Proportional to 1,652.30, 2,474.99 and 775.54

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Solution

The fourth proportional to 1,652.30, 2,474.99 and 775.54 is: 1,161.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,652.30 : 2,474.99 = 775.54 : x
  2. Step 2: Convert to fraction form
    1,652.30/2,474.99 = 775.54/x
  3. Step 3: Cross multiply
    1,652.30x = 2,474.99 × 775.54
  4. Step 4: Simplify right side
    1,652.30x = 1,919,455.87
  5. Step 5: Solve for x
    x = 1,919,455.87/1,652.30
  6. Step 6: Final answer
    x = 1,161.69

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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.