Home / 5,151.96-7,112.68-3,582.16

Finding the Fourth Proportional to 5,151.96, 7,112.68 and 3,582.16

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Solution

The fourth proportional to 5,151.96, 7,112.68 and 3,582.16 is: 4,945.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.96 : 7,112.68 = 3,582.16 : x
  2. Step 2: Convert to fraction form
    5,151.96/7,112.68 = 3,582.16/x
  3. Step 3: Cross multiply
    5,151.96x = 7,112.68 × 3,582.16
  4. Step 4: Simplify right side
    5,151.96x = 25,478,757.79
  5. Step 5: Solve for x
    x = 25,478,757.79/5,151.96
  6. Step 6: Final answer
    x = 4,945.45

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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.