Home / 3,150.08-4,349.28-1,971.68

Finding the Fourth Proportional to 3,150.08, 4,349.28 and 1,971.68

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Solution

The fourth proportional to 3,150.08, 4,349.28 and 1,971.68 is: 2,722.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.08 : 4,349.28 = 1,971.68 : x
  2. Step 2: Convert to fraction form
    3,150.08/4,349.28 = 1,971.68/x
  3. Step 3: Cross multiply
    3,150.08x = 4,349.28 × 1,971.68
  4. Step 4: Simplify right side
    3,150.08x = 8,575,388.39
  5. Step 5: Solve for x
    x = 8,575,388.39/3,150.08
  6. Step 6: Final answer
    x = 2,722.28

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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.