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Finding the Fourth Proportional to 4,878.82, 7,316.90 and 1,368.62

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Solution

The fourth proportional to 4,878.82, 7,316.90 and 1,368.62 is: 2,052.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.82 : 7,316.90 = 1,368.62 : x
  2. Step 2: Convert to fraction form
    4,878.82/7,316.90 = 1,368.62/x
  3. Step 3: Cross multiply
    4,878.82x = 7,316.90 × 1,368.62
  4. Step 4: Simplify right side
    4,878.82x = 10,014,055.68
  5. Step 5: Solve for x
    x = 10,014,055.68/4,878.82
  6. Step 6: Final answer
    x = 2,052.56

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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.