Home / 2,914.25-4,021.53-1,587.87

Finding the Fourth Proportional to 2,914.25, 4,021.53 and 1,587.87

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Solution

The fourth proportional to 2,914.25, 4,021.53 and 1,587.87 is: 2,191.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,914.25 : 4,021.53 = 1,587.87 : x
  2. Step 2: Convert to fraction form
    2,914.25/4,021.53 = 1,587.87/x
  3. Step 3: Cross multiply
    2,914.25x = 4,021.53 × 1,587.87
  4. Step 4: Simplify right side
    2,914.25x = 6,385,666.84
  5. Step 5: Solve for x
    x = 6,385,666.84/2,914.25
  6. Step 6: Final answer
    x = 2,191.19

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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.