Home / 5,415.94-7,473.65-3,147.08

Finding the Fourth Proportional to 5,415.94, 7,473.65 and 3,147.08

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Solution

The fourth proportional to 5,415.94, 7,473.65 and 3,147.08 is: 4,342.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.94 : 7,473.65 = 3,147.08 : x
  2. Step 2: Convert to fraction form
    5,415.94/7,473.65 = 3,147.08/x
  3. Step 3: Cross multiply
    5,415.94x = 7,473.65 × 3,147.08
  4. Step 4: Simplify right side
    5,415.94x = 23,520,149.36
  5. Step 5: Solve for x
    x = 23,520,149.36/5,415.94
  6. Step 6: Final answer
    x = 4,342.76

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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.