Home / 5,370.60-7,410.16-3,131.16

Finding the Fourth Proportional to 5,370.60, 7,410.16 and 3,131.16

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Solution

The fourth proportional to 5,370.60, 7,410.16 and 3,131.16 is: 4,320.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,370.60 : 7,410.16 = 3,131.16 : x
  2. Step 2: Convert to fraction form
    5,370.60/7,410.16 = 3,131.16/x
  3. Step 3: Cross multiply
    5,370.60x = 7,410.16 × 3,131.16
  4. Step 4: Simplify right side
    5,370.60x = 23,202,396.59
  5. Step 5: Solve for x
    x = 23,202,396.59/5,370.60
  6. Step 6: Final answer
    x = 4,320.26

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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.