Home / 3,126.51-4,316.36-2,079.99

Finding the Fourth Proportional to 3,126.51, 4,316.36 and 2,079.99

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Solution

The fourth proportional to 3,126.51, 4,316.36 and 2,079.99 is: 2,871.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.51 : 4,316.36 = 2,079.99 : x
  2. Step 2: Convert to fraction form
    3,126.51/4,316.36 = 2,079.99/x
  3. Step 3: Cross multiply
    3,126.51x = 4,316.36 × 2,079.99
  4. Step 4: Simplify right side
    3,126.51x = 8,977,975.24
  5. Step 5: Solve for x
    x = 8,977,975.24/3,126.51
  6. Step 6: Final answer
    x = 2,871.56

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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.