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Finding the Fourth Proportional to 3,897.88, 5,846.76 and 976.18

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Solution

The fourth proportional to 3,897.88, 5,846.76 and 976.18 is: 1,464.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897.88 : 5,846.76 = 976.18 : x
  2. Step 2: Convert to fraction form
    3,897.88/5,846.76 = 976.18/x
  3. Step 3: Cross multiply
    3,897.88x = 5,846.76 × 976.18
  4. Step 4: Simplify right side
    3,897.88x = 5,707,490.18
  5. Step 5: Solve for x
    x = 5,707,490.18/3,897.88
  6. Step 6: Final answer
    x = 1,464.25

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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.