Home / 2,403.21-3,316.43-1,355.27

Finding the Fourth Proportional to 2,403.21, 3,316.43 and 1,355.27

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Solution

The fourth proportional to 2,403.21, 3,316.43 and 1,355.27 is: 1,870.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.21 : 3,316.43 = 1,355.27 : x
  2. Step 2: Convert to fraction form
    2,403.21/3,316.43 = 1,355.27/x
  3. Step 3: Cross multiply
    2,403.21x = 3,316.43 × 1,355.27
  4. Step 4: Simplify right side
    2,403.21x = 4,494,658.09
  5. Step 5: Solve for x
    x = 4,494,658.09/2,403.21
  6. Step 6: Final answer
    x = 1,870.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.