Home / 4,415.40-6,632.70-4,252.20

Finding the Fourth Proportional to 4,415.40, 6,632.70 and 4,252.20

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Solution

The fourth proportional to 4,415.40, 6,632.70 and 4,252.20 is: 6,387.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,415.40 : 6,632.70 = 4,252.20 : x
  2. Step 2: Convert to fraction form
    4,415.40/6,632.70 = 4,252.20/x
  3. Step 3: Cross multiply
    4,415.40x = 6,632.70 × 4,252.20
  4. Step 4: Simplify right side
    4,415.40x = 28,203,566.94
  5. Step 5: Solve for x
    x = 28,203,566.94/4,415.40
  6. Step 6: Final answer
    x = 6,387.55

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1.5x scale

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.