Home / 2,681.69-4,015.11-2,021.57

Finding the Fourth Proportional to 2,681.69, 4,015.11 and 2,021.57

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Solution

The fourth proportional to 2,681.69, 4,015.11 and 2,021.57 is: 3,026.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.69 : 4,015.11 = 2,021.57 : x
  2. Step 2: Convert to fraction form
    2,681.69/4,015.11 = 2,021.57/x
  3. Step 3: Cross multiply
    2,681.69x = 4,015.11 × 2,021.57
  4. Step 4: Simplify right side
    2,681.69x = 8,116,811.51
  5. Step 5: Solve for x
    x = 8,116,811.51/2,681.69
  6. Step 6: Final answer
    x = 3,026.75

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1.5x scale

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.