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Finding the Fourth Proportional to 5,807.92, 8,015 and 3,155.37

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Solution

The fourth proportional to 5,807.92, 8,015 and 3,155.37 is: 4,354.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,807.92 : 8,015 = 3,155.37 : x
  2. Step 2: Convert to fraction form
    5,807.92/8,015 = 3,155.37/x
  3. Step 3: Cross multiply
    5,807.92x = 8,015 × 3,155.37
  4. Step 4: Simplify right side
    5,807.92x = 25,290,290.55
  5. Step 5: Solve for x
    x = 25,290,290.55/5,807.92
  6. Step 6: Final answer
    x = 4,354.45

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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.