Home / 5,406.66-8,112.52-5,319.30

Finding the Fourth Proportional to 5,406.66, 8,112.52 and 5,319.30

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Solution

The fourth proportional to 5,406.66, 8,112.52 and 5,319.30 is: 7,981.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.66 : 8,112.52 = 5,319.30 : x
  2. Step 2: Convert to fraction form
    5,406.66/8,112.52 = 5,319.30/x
  3. Step 3: Cross multiply
    5,406.66x = 8,112.52 × 5,319.30
  4. Step 4: Simplify right side
    5,406.66x = 43,152,927.64
  5. Step 5: Solve for x
    x = 43,152,927.64/5,406.66
  6. Step 6: Final answer
    x = 7,981.44

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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.