Home / 5,186.63-7,157.54-2,828.77

Finding the Fourth Proportional to 5,186.63, 7,157.54 and 2,828.77

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Solution

The fourth proportional to 5,186.63, 7,157.54 and 2,828.77 is: 3,903.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.63 : 7,157.54 = 2,828.77 : x
  2. Step 2: Convert to fraction form
    5,186.63/7,157.54 = 2,828.77/x
  3. Step 3: Cross multiply
    5,186.63x = 7,157.54 × 2,828.77
  4. Step 4: Simplify right side
    5,186.63x = 20,247,034.43
  5. Step 5: Solve for x
    x = 20,247,034.43/5,186.63
  6. Step 6: Final answer
    x = 3,903.70

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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.