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Finding the Fourth Proportional to 1,479.05, 2,041.06 and 849.58

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Solution

The fourth proportional to 1,479.05, 2,041.06 and 849.58 is: 1,172.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.05 : 2,041.06 = 849.58 : x
  2. Step 2: Convert to fraction form
    1,479.05/2,041.06 = 849.58/x
  3. Step 3: Cross multiply
    1,479.05x = 2,041.06 × 849.58
  4. Step 4: Simplify right side
    1,479.05x = 1,734,043.75
  5. Step 5: Solve for x
    x = 1,734,043.75/1,479.05
  6. Step 6: Final answer
    x = 1,172.40

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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.