Home / 5,470.63-8,208.63-3,390.08

Finding the Fourth Proportional to 5,470.63, 8,208.63 and 3,390.08

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Solution

The fourth proportional to 5,470.63, 8,208.63 and 3,390.08 is: 5,086.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.63 : 8,208.63 = 3,390.08 : x
  2. Step 2: Convert to fraction form
    5,470.63/8,208.63 = 3,390.08/x
  3. Step 3: Cross multiply
    5,470.63x = 8,208.63 × 3,390.08
  4. Step 4: Simplify right side
    5,470.63x = 27,827,895.44
  5. Step 5: Solve for x
    x = 27,827,895.44/5,470.63
  6. Step 6: Final answer
    x = 5,086.78

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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.