Home / 5,167.36-7,130.96-3,071.68

Finding the Fourth Proportional to 5,167.36, 7,130.96 and 3,071.68

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Solution

The fourth proportional to 5,167.36, 7,130.96 and 3,071.68 is: 4,238.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.36 : 7,130.96 = 3,071.68 : x
  2. Step 2: Convert to fraction form
    5,167.36/7,130.96 = 3,071.68/x
  3. Step 3: Cross multiply
    5,167.36x = 7,130.96 × 3,071.68
  4. Step 4: Simplify right side
    5,167.36x = 21,904,027.21
  5. Step 5: Solve for x
    x = 21,904,027.21/5,167.36
  6. Step 6: Final answer
    x = 4,238.92

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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.