Home / 3,619.58-5,424.48-1,642.76

Finding the Fourth Proportional to 3,619.58, 5,424.48 and 1,642.76

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Solution

The fourth proportional to 3,619.58, 5,424.48 and 1,642.76 is: 2,461.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.58 : 5,424.48 = 1,642.76 : x
  2. Step 2: Convert to fraction form
    3,619.58/5,424.48 = 1,642.76/x
  3. Step 3: Cross multiply
    3,619.58x = 5,424.48 × 1,642.76
  4. Step 4: Simplify right side
    3,619.58x = 8,911,091.64
  5. Step 5: Solve for x
    x = 8,911,091.64/3,619.58
  6. Step 6: Final answer
    x = 2,461.91

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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.