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Finding the Fourth Proportional to 5,816.77, 8,030.11 and 3,938.28

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Solution

The fourth proportional to 5,816.77, 8,030.11 and 3,938.28 is: 5,436.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,816.77 : 8,030.11 = 3,938.28 : x
  2. Step 2: Convert to fraction form
    5,816.77/8,030.11 = 3,938.28/x
  3. Step 3: Cross multiply
    5,816.77x = 8,030.11 × 3,938.28
  4. Step 4: Simplify right side
    5,816.77x = 31,624,821.61
  5. Step 5: Solve for x
    x = 31,624,821.61/5,816.77
  6. Step 6: Final answer
    x = 5,436.84

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1.5x scale

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.