Home / 5,139.02-7,091.09-3,013.75

Finding the Fourth Proportional to 5,139.02, 7,091.09 and 3,013.75

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Solution

The fourth proportional to 5,139.02, 7,091.09 and 3,013.75 is: 4,158.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.02 : 7,091.09 = 3,013.75 : x
  2. Step 2: Convert to fraction form
    5,139.02/7,091.09 = 3,013.75/x
  3. Step 3: Cross multiply
    5,139.02x = 7,091.09 × 3,013.75
  4. Step 4: Simplify right side
    5,139.02x = 21,370,749.16
  5. Step 5: Solve for x
    x = 21,370,749.16/5,139.02
  6. Step 6: Final answer
    x = 4,158.53

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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.