Home / 5,143.48-7,708.38-2,803.48

Finding the Fourth Proportional to 5,143.48, 7,708.38 and 2,803.48

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Solution

The fourth proportional to 5,143.48, 7,708.38 and 2,803.48 is: 4,201.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.48 : 7,708.38 = 2,803.48 : x
  2. Step 2: Convert to fraction form
    5,143.48/7,708.38 = 2,803.48/x
  3. Step 3: Cross multiply
    5,143.48x = 7,708.38 × 2,803.48
  4. Step 4: Simplify right side
    5,143.48x = 21,610,289.16
  5. Step 5: Solve for x
    x = 21,610,289.16/5,143.48
  6. Step 6: Final answer
    x = 4,201.49

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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.