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Finding the Fourth Proportional to 2,302, 3,176.86 and 1,307.28

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Solution

The fourth proportional to 2,302, 3,176.86 and 1,307.28 is: 1,804.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,302 : 3,176.86 = 1,307.28 : x
  2. Step 2: Convert to fraction form
    2,302/3,176.86 = 1,307.28/x
  3. Step 3: Cross multiply
    2,302x = 3,176.86 × 1,307.28
  4. Step 4: Simplify right side
    2,302x = 4,153,045.54
  5. Step 5: Solve for x
    x = 4,153,045.54/2,302
  6. Step 6: Final answer
    x = 1,804.10

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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.