Home / 2,087.96-3,136.46-1,357.16

Finding the Fourth Proportional to 2,087.96, 3,136.46 and 1,357.16

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Solution

The fourth proportional to 2,087.96, 3,136.46 and 1,357.16 is: 2,038.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.96 : 3,136.46 = 1,357.16 : x
  2. Step 2: Convert to fraction form
    2,087.96/3,136.46 = 1,357.16/x
  3. Step 3: Cross multiply
    2,087.96x = 3,136.46 × 1,357.16
  4. Step 4: Simplify right side
    2,087.96x = 4,256,678.05
  5. Step 5: Solve for x
    x = 4,256,678.05/2,087.96
  6. Step 6: Final answer
    x = 2,038.68

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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.