Home / 2,914.22-4,021.61-1,587.98

Finding the Fourth Proportional to 2,914.22, 4,021.61 and 1,587.98

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Solution

The fourth proportional to 2,914.22, 4,021.61 and 1,587.98 is: 2,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,914.22 : 4,021.61 = 1,587.98 : x
  2. Step 2: Convert to fraction form
    2,914.22/4,021.61 = 1,587.98/x
  3. Step 3: Cross multiply
    2,914.22x = 4,021.61 × 1,587.98
  4. Step 4: Simplify right side
    2,914.22x = 6,386,236.25
  5. Step 5: Solve for x
    x = 6,386,236.25/2,914.22
  6. Step 6: Final answer
    x = 2,191.40

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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.