Home / 3,185.68-4,776-1,453.36

Finding the Fourth Proportional to 3,185.68, 4,776 and 1,453.36

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Solution

The fourth proportional to 3,185.68, 4,776 and 1,453.36 is: 2,178.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.68 : 4,776 = 1,453.36 : x
  2. Step 2: Convert to fraction form
    3,185.68/4,776 = 1,453.36/x
  3. Step 3: Cross multiply
    3,185.68x = 4,776 × 1,453.36
  4. Step 4: Simplify right side
    3,185.68x = 6,941,247.36
  5. Step 5: Solve for x
    x = 6,941,247.36/3,185.68
  6. Step 6: Final answer
    x = 2,178.89

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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.