Home / 2,913.93-4,021.27-1,587.64

Finding the Fourth Proportional to 2,913.93, 4,021.27 and 1,587.64

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Solution

The fourth proportional to 2,913.93, 4,021.27 and 1,587.64 is: 2,190.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.93 : 4,021.27 = 1,587.64 : x
  2. Step 2: Convert to fraction form
    2,913.93/4,021.27 = 1,587.64/x
  3. Step 3: Cross multiply
    2,913.93x = 4,021.27 × 1,587.64
  4. Step 4: Simplify right side
    2,913.93x = 6,384,310.98
  5. Step 5: Solve for x
    x = 6,384,310.98/2,913.93
  6. Step 6: Final answer
    x = 2,190.96

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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.