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Finding the Fourth Proportional to 4,476, 6,176.79 and 2,486.50

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Solution

The fourth proportional to 4,476, 6,176.79 and 2,486.50 is: 3,431.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,476 : 6,176.79 = 2,486.50 : x
  2. Step 2: Convert to fraction form
    4,476/6,176.79 = 2,486.50/x
  3. Step 3: Cross multiply
    4,476x = 6,176.79 × 2,486.50
  4. Step 4: Simplify right side
    4,476x = 15,358,588.34
  5. Step 5: Solve for x
    x = 15,358,588.34/4,476
  6. Step 6: Final answer
    x = 3,431.32

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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.