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Finding the Fourth Proportional to 2,099.10, 3,150.08 and 866.51

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Solution

The fourth proportional to 2,099.10, 3,150.08 and 866.51 is: 1,300.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099.10 : 3,150.08 = 866.51 : x
  2. Step 2: Convert to fraction form
    2,099.10/3,150.08 = 866.51/x
  3. Step 3: Cross multiply
    2,099.10x = 3,150.08 × 866.51
  4. Step 4: Simplify right side
    2,099.10x = 2,729,555.74
  5. Step 5: Solve for x
    x = 2,729,555.74/2,099.10
  6. Step 6: Final answer
    x = 1,300.35

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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.