Home / 5,812.16-8,018.88-3,945.92

Finding the Fourth Proportional to 5,812.16, 8,018.88 and 3,945.92

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Solution

The fourth proportional to 5,812.16, 8,018.88 and 3,945.92 is: 5,444.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.16 : 8,018.88 = 3,945.92 : x
  2. Step 2: Convert to fraction form
    5,812.16/8,018.88 = 3,945.92/x
  3. Step 3: Cross multiply
    5,812.16x = 8,018.88 × 3,945.92
  4. Step 4: Simplify right side
    5,812.16x = 31,641,858.97
  5. Step 5: Solve for x
    x = 31,641,858.97/5,812.16
  6. Step 6: Final answer
    x = 5,444.08

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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.