Home / 2,914.13-4,021.35-1,587.80

Finding the Fourth Proportional to 2,914.13, 4,021.35 and 1,587.80

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Solution

The fourth proportional to 2,914.13, 4,021.35 and 1,587.80 is: 2,191.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,914.13 : 4,021.35 = 1,587.80 : x
  2. Step 2: Convert to fraction form
    2,914.13/4,021.35 = 1,587.80/x
  3. Step 3: Cross multiply
    2,914.13x = 4,021.35 × 1,587.80
  4. Step 4: Simplify right side
    2,914.13x = 6,385,103.63
  5. Step 5: Solve for x
    x = 6,385,103.63/2,914.13
  6. Step 6: Final answer
    x = 2,191.09

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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.