Home / 7,045.31-9,722.63-3,858.54

Finding the Fourth Proportional to 7,045.31, 9,722.63 and 3,858.54

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Solution

The fourth proportional to 7,045.31, 9,722.63 and 3,858.54 is: 5,324.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045.31 : 9,722.63 = 3,858.54 : x
  2. Step 2: Convert to fraction form
    7,045.31/9,722.63 = 3,858.54/x
  3. Step 3: Cross multiply
    7,045.31x = 9,722.63 × 3,858.54
  4. Step 4: Simplify right side
    7,045.31x = 37,515,190.71
  5. Step 5: Solve for x
    x = 37,515,190.71/7,045.31
  6. Step 6: Final answer
    x = 5,324.85

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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.