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Finding the Fourth Proportional to 3,053.19, 4,579.94 and 862.09

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Solution

The fourth proportional to 3,053.19, 4,579.94 and 862.09 is: 1,293.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,053.19 : 4,579.94 = 862.09 : x
  2. Step 2: Convert to fraction form
    3,053.19/4,579.94 = 862.09/x
  3. Step 3: Cross multiply
    3,053.19x = 4,579.94 × 862.09
  4. Step 4: Simplify right side
    3,053.19x = 3,948,320.47
  5. Step 5: Solve for x
    x = 3,948,320.47/3,053.19
  6. Step 6: Final answer
    x = 1,293.18

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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.