Home / 4,240.86-6,361.29-1,318.38

Finding the Fourth Proportional to 4,240.86, 6,361.29 and 1,318.38

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Solution

The fourth proportional to 4,240.86, 6,361.29 and 1,318.38 is: 1,977.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,240.86 : 6,361.29 = 1,318.38 : x
  2. Step 2: Convert to fraction form
    4,240.86/6,361.29 = 1,318.38/x
  3. Step 3: Cross multiply
    4,240.86x = 6,361.29 × 1,318.38
  4. Step 4: Simplify right side
    4,240.86x = 8,386,597.51
  5. Step 5: Solve for x
    x = 8,386,597.51/4,240.86
  6. Step 6: Final answer
    x = 1,977.57

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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.