Home / 3,130.37-4,695.60-938.97

Finding the Fourth Proportional to 3,130.37, 4,695.60 and 938.97

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Solution

The fourth proportional to 3,130.37, 4,695.60 and 938.97 is: 1,408.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.37 : 4,695.60 = 938.97 : x
  2. Step 2: Convert to fraction form
    3,130.37/4,695.60 = 938.97/x
  3. Step 3: Cross multiply
    3,130.37x = 4,695.60 × 938.97
  4. Step 4: Simplify right side
    3,130.37x = 4,409,009.92
  5. Step 5: Solve for x
    x = 4,409,009.92/3,130.37
  6. Step 6: Final answer
    x = 1,408.46

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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.