Home / 5,212.46-7,818.06-1,316.90

Finding the Fourth Proportional to 5,212.46, 7,818.06 and 1,316.90

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Solution

The fourth proportional to 5,212.46, 7,818.06 and 1,316.90 is: 1,975.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.46 : 7,818.06 = 1,316.90 : x
  2. Step 2: Convert to fraction form
    5,212.46/7,818.06 = 1,316.90/x
  3. Step 3: Cross multiply
    5,212.46x = 7,818.06 × 1,316.90
  4. Step 4: Simplify right side
    5,212.46x = 10,295,603.21
  5. Step 5: Solve for x
    x = 10,295,603.21/5,212.46
  6. Step 6: Final answer
    x = 1,975.19

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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.