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Finding the Fourth Proportional to 2,070, 3,107.86 and 1,070.06

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Solution

The fourth proportional to 2,070, 3,107.86 and 1,070.06 is: 1,606.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070 : 3,107.86 = 1,070.06 : x
  2. Step 2: Convert to fraction form
    2,070/3,107.86 = 1,070.06/x
  3. Step 3: Cross multiply
    2,070x = 3,107.86 × 1,070.06
  4. Step 4: Simplify right side
    2,070x = 3,325,596.67
  5. Step 5: Solve for x
    x = 3,325,596.67/2,070
  6. Step 6: Final answer
    x = 1,606.57

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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.