Home / 3,555.56-5,334.06-1,215.38

Finding the Fourth Proportional to 3,555.56, 5,334.06 and 1,215.38

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Solution

The fourth proportional to 3,555.56, 5,334.06 and 1,215.38 is: 1,823.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.56 : 5,334.06 = 1,215.38 : x
  2. Step 2: Convert to fraction form
    3,555.56/5,334.06 = 1,215.38/x
  3. Step 3: Cross multiply
    3,555.56x = 5,334.06 × 1,215.38
  4. Step 4: Simplify right side
    3,555.56x = 6,482,909.84
  5. Step 5: Solve for x
    x = 6,482,909.84/3,555.56
  6. Step 6: Final answer
    x = 1,823.32

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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.