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Finding the Fourth Proportional to 2,804.05, 3,868.10 and 1,668.91

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Solution

The fourth proportional to 2,804.05, 3,868.10 and 1,668.91 is: 2,302.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,804.05 : 3,868.10 = 1,668.91 : x
  2. Step 2: Convert to fraction form
    2,804.05/3,868.10 = 1,668.91/x
  3. Step 3: Cross multiply
    2,804.05x = 3,868.10 × 1,668.91
  4. Step 4: Simplify right side
    2,804.05x = 6,455,510.77
  5. Step 5: Solve for x
    x = 6,455,510.77/2,804.05
  6. Step 6: Final answer
    x = 2,302.21

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1.5x scale

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.