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Finding the Fourth Proportional to 2,409.84, 3,325.23 and 1,415.44

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Solution

The fourth proportional to 2,409.84, 3,325.23 and 1,415.44 is: 1,953.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,409.84 : 3,325.23 = 1,415.44 : x
  2. Step 2: Convert to fraction form
    2,409.84/3,325.23 = 1,415.44/x
  3. Step 3: Cross multiply
    2,409.84x = 3,325.23 × 1,415.44
  4. Step 4: Simplify right side
    2,409.84x = 4,706,667.71
  5. Step 5: Solve for x
    x = 4,706,667.71/2,409.84
  6. Step 6: Final answer
    x = 1,953.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.