Home / 6,415.31-8,853.12-3,727.04

Finding the Fourth Proportional to 6,415.31, 8,853.12 and 3,727.04

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Solution

The fourth proportional to 6,415.31, 8,853.12 and 3,727.04 is: 5,143.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,415.31 : 8,853.12 = 3,727.04 : x
  2. Step 2: Convert to fraction form
    6,415.31/8,853.12 = 3,727.04/x
  3. Step 3: Cross multiply
    6,415.31x = 8,853.12 × 3,727.04
  4. Step 4: Simplify right side
    6,415.31x = 32,995,932.36
  5. Step 5: Solve for x
    x = 32,995,932.36/6,415.31
  6. Step 6: Final answer
    x = 5,143.31

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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.