Home / 4,239.41-6,359.72-1,318.01

Finding the Fourth Proportional to 4,239.41, 6,359.72 and 1,318.01

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Solution

The fourth proportional to 4,239.41, 6,359.72 and 1,318.01 is: 1,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,239.41 : 6,359.72 = 1,318.01 : x
  2. Step 2: Convert to fraction form
    4,239.41/6,359.72 = 1,318.01/x
  3. Step 3: Cross multiply
    4,239.41x = 6,359.72 × 1,318.01
  4. Step 4: Simplify right side
    4,239.41x = 8,382,136.17
  5. Step 5: Solve for x
    x = 8,382,136.17/4,239.41
  6. Step 6: Final answer
    x = 1,977.20

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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.