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Finding the Fourth Proportional to 2,415.07, 3,622.36 and 660.23

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Solution

The fourth proportional to 2,415.07, 3,622.36 and 660.23 is: 990.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.07 : 3,622.36 = 660.23 : x
  2. Step 2: Convert to fraction form
    2,415.07/3,622.36 = 660.23/x
  3. Step 3: Cross multiply
    2,415.07x = 3,622.36 × 660.23
  4. Step 4: Simplify right side
    2,415.07x = 2,391,588.24
  5. Step 5: Solve for x
    x = 2,391,588.24/2,415.07
  6. Step 6: Final answer
    x = 990.28

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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.