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Finding the Fourth Proportional to 1,406.64, 2,110.08 and 482.34

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Solution

The fourth proportional to 1,406.64, 2,110.08 and 482.34 is: 723.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406.64 : 2,110.08 = 482.34 : x
  2. Step 2: Convert to fraction form
    1,406.64/2,110.08 = 482.34/x
  3. Step 3: Cross multiply
    1,406.64x = 2,110.08 × 482.34
  4. Step 4: Simplify right side
    1,406.64x = 1,017,775.99
  5. Step 5: Solve for x
    x = 1,017,775.99/1,406.64
  6. Step 6: Final answer
    x = 723.55

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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.