Home / 5,812.35-8,018.37-4,215.51

Finding the Fourth Proportional to 5,812.35, 8,018.37 and 4,215.51

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Solution

The fourth proportional to 5,812.35, 8,018.37 and 4,215.51 is: 5,815.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.35 : 8,018.37 = 4,215.51 : x
  2. Step 2: Convert to fraction form
    5,812.35/8,018.37 = 4,215.51/x
  3. Step 3: Cross multiply
    5,812.35x = 8,018.37 × 4,215.51
  4. Step 4: Simplify right side
    5,812.35x = 33,801,518.92
  5. Step 5: Solve for x
    x = 33,801,518.92/5,812.35
  6. Step 6: Final answer
    x = 5,815.47

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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.