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Finding the Fourth Proportional to 2,415.74, 3,623.36 and 773.46

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Solution

The fourth proportional to 2,415.74, 3,623.36 and 773.46 is: 1,160.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.74 : 3,623.36 = 773.46 : x
  2. Step 2: Convert to fraction form
    2,415.74/3,623.36 = 773.46/x
  3. Step 3: Cross multiply
    2,415.74x = 3,623.36 × 773.46
  4. Step 4: Simplify right side
    2,415.74x = 2,802,520.16
  5. Step 5: Solve for x
    x = 2,802,520.16/2,415.74
  6. Step 6: Final answer
    x = 1,160.11

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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.