Home / 6,386.55-9,583.53-2,688.54

Finding the Fourth Proportional to 6,386.55, 9,583.53 and 2,688.54

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Solution

The fourth proportional to 6,386.55, 9,583.53 and 2,688.54 is: 4,034.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.55 : 9,583.53 = 2,688.54 : x
  2. Step 2: Convert to fraction form
    6,386.55/9,583.53 = 2,688.54/x
  3. Step 3: Cross multiply
    6,386.55x = 9,583.53 × 2,688.54
  4. Step 4: Simplify right side
    6,386.55x = 25,765,703.75
  5. Step 5: Solve for x
    x = 25,765,703.75/6,386.55
  6. Step 6: Final answer
    x = 4,034.37

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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.