Home / 5,384.72-8,018.26-5,187.92

Finding the Fourth Proportional to 5,384.72, 8,018.26 and 5,187.92

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Solution

The fourth proportional to 5,384.72, 8,018.26 and 5,187.92 is: 7,725.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.72 : 8,018.26 = 5,187.92 : x
  2. Step 2: Convert to fraction form
    5,384.72/8,018.26 = 5,187.92/x
  3. Step 3: Cross multiply
    5,384.72x = 8,018.26 × 5,187.92
  4. Step 4: Simplify right side
    5,384.72x = 41,598,091.42
  5. Step 5: Solve for x
    x = 41,598,091.42/5,384.72
  6. Step 6: Final answer
    x = 7,725.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.