Home / 5,238.48-7,857.76-2,316.80

Finding the Fourth Proportional to 5,238.48, 7,857.76 and 2,316.80

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Solution

The fourth proportional to 5,238.48, 7,857.76 and 2,316.80 is: 3,475.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.48 : 7,857.76 = 2,316.80 : x
  2. Step 2: Convert to fraction form
    5,238.48/7,857.76 = 2,316.80/x
  3. Step 3: Cross multiply
    5,238.48x = 7,857.76 × 2,316.80
  4. Step 4: Simplify right side
    5,238.48x = 18,204,858.37
  5. Step 5: Solve for x
    x = 18,204,858.37/5,238.48
  6. Step 6: Final answer
    x = 3,475.22

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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.