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Finding the Fourth Proportional to 2,623.98, 3,935.64 and 775.06

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Solution

The fourth proportional to 2,623.98, 3,935.64 and 775.06 is: 1,162.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,623.98 : 3,935.64 = 775.06 : x
  2. Step 2: Convert to fraction form
    2,623.98/3,935.64 = 775.06/x
  3. Step 3: Cross multiply
    2,623.98x = 3,935.64 × 775.06
  4. Step 4: Simplify right side
    2,623.98x = 3,050,357.14
  5. Step 5: Solve for x
    x = 3,050,357.14/2,623.98
  6. Step 6: Final answer
    x = 1,162.49

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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.