Home / 2,703.20-4,054.80-2,156.45

Finding the Fourth Proportional to 2,703.20, 4,054.80 and 2,156.45

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Solution

The fourth proportional to 2,703.20, 4,054.80 and 2,156.45 is: 3,234.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,703.20 : 4,054.80 = 2,156.45 : x
  2. Step 2: Convert to fraction form
    2,703.20/4,054.80 = 2,156.45/x
  3. Step 3: Cross multiply
    2,703.20x = 4,054.80 × 2,156.45
  4. Step 4: Simplify right side
    2,703.20x = 8,743,973.46
  5. Step 5: Solve for x
    x = 8,743,973.46/2,703.20
  6. Step 6: Final answer
    x = 3,234.68

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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.