Home / 3,127.89-4,316.09-1,933.14

Finding the Fourth Proportional to 3,127.89, 4,316.09 and 1,933.14

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Solution

The fourth proportional to 3,127.89, 4,316.09 and 1,933.14 is: 2,667.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.89 : 4,316.09 = 1,933.14 : x
  2. Step 2: Convert to fraction form
    3,127.89/4,316.09 = 1,933.14/x
  3. Step 3: Cross multiply
    3,127.89x = 4,316.09 × 1,933.14
  4. Step 4: Simplify right side
    3,127.89x = 8,343,606.22
  5. Step 5: Solve for x
    x = 8,343,606.22/3,127.89
  6. Step 6: Final answer
    x = 2,667.49

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1.5x scale

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.