Home / 4,281.34-6,420.45-1,816.36

Finding the Fourth Proportional to 4,281.34, 6,420.45 and 1,816.36

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Solution

The fourth proportional to 4,281.34, 6,420.45 and 1,816.36 is: 2,723.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,281.34 : 6,420.45 = 1,816.36 : x
  2. Step 2: Convert to fraction form
    4,281.34/6,420.45 = 1,816.36/x
  3. Step 3: Cross multiply
    4,281.34x = 6,420.45 × 1,816.36
  4. Step 4: Simplify right side
    4,281.34x = 11,661,848.56
  5. Step 5: Solve for x
    x = 11,661,848.56/4,281.34
  6. Step 6: Final answer
    x = 2,723.88

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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.