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Finding the Fourth Proportional to 5,368.92, 8,055.70 and 2,905.49

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Solution

The fourth proportional to 5,368.92, 8,055.70 and 2,905.49 is: 4,359.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,368.92 : 8,055.70 = 2,905.49 : x
  2. Step 2: Convert to fraction form
    5,368.92/8,055.70 = 2,905.49/x
  3. Step 3: Cross multiply
    5,368.92x = 8,055.70 × 2,905.49
  4. Step 4: Simplify right side
    5,368.92x = 23,405,755.79
  5. Step 5: Solve for x
    x = 23,405,755.79/5,368.92
  6. Step 6: Final answer
    x = 4,359.49

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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.