Home / 2,877.27-4,318.38-1,319.64

Finding the Fourth Proportional to 2,877.27, 4,318.38 and 1,319.64

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Solution

The fourth proportional to 2,877.27, 4,318.38 and 1,319.64 is: 1,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.27 : 4,318.38 = 1,319.64 : x
  2. Step 2: Convert to fraction form
    2,877.27/4,318.38 = 1,319.64/x
  3. Step 3: Cross multiply
    2,877.27x = 4,318.38 × 1,319.64
  4. Step 4: Simplify right side
    2,877.27x = 5,698,706.98
  5. Step 5: Solve for x
    x = 5,698,706.98/2,877.27
  6. Step 6: Final answer
    x = 1,980.60

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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.