Home / 3,187.62-4,779.36-1,240.02

Finding the Fourth Proportional to 3,187.62, 4,779.36 and 1,240.02

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Solution

The fourth proportional to 3,187.62, 4,779.36 and 1,240.02 is: 1,859.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.62 : 4,779.36 = 1,240.02 : x
  2. Step 2: Convert to fraction form
    3,187.62/4,779.36 = 1,240.02/x
  3. Step 3: Cross multiply
    3,187.62x = 4,779.36 × 1,240.02
  4. Step 4: Simplify right side
    3,187.62x = 5,926,501.99
  5. Step 5: Solve for x
    x = 5,926,501.99/3,187.62
  6. Step 6: Final answer
    x = 1,859.22

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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.