Home / 5,108.36-7,040.34-3,708.68

Finding the Fourth Proportional to 5,108.36, 7,040.34 and 3,708.68

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Solution

The fourth proportional to 5,108.36, 7,040.34 and 3,708.68 is: 5,111.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.36 : 7,040.34 = 3,708.68 : x
  2. Step 2: Convert to fraction form
    5,108.36/7,040.34 = 3,708.68/x
  3. Step 3: Cross multiply
    5,108.36x = 7,040.34 × 3,708.68
  4. Step 4: Simplify right side
    5,108.36x = 26,110,368.15
  5. Step 5: Solve for x
    x = 26,110,368.15/5,108.36
  6. Step 6: Final answer
    x = 5,111.30

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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.