Home / 5,415.31-7,467.94-3,291.19

Finding the Fourth Proportional to 5,415.31, 7,467.94 and 3,291.19

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Solution

The fourth proportional to 5,415.31, 7,467.94 and 3,291.19 is: 4,538.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.31 : 7,467.94 = 3,291.19 : x
  2. Step 2: Convert to fraction form
    5,415.31/7,467.94 = 3,291.19/x
  3. Step 3: Cross multiply
    5,415.31x = 7,467.94 × 3,291.19
  4. Step 4: Simplify right side
    5,415.31x = 24,578,409.45
  5. Step 5: Solve for x
    x = 24,578,409.45/5,415.31
  6. Step 6: Final answer
    x = 4,538.69

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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.