Home / 5,210.51-7,816.91-1,512.86

Finding the Fourth Proportional to 5,210.51, 7,816.91 and 1,512.86

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Solution

The fourth proportional to 5,210.51, 7,816.91 and 1,512.86 is: 2,269.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.51 : 7,816.91 = 1,512.86 : x
  2. Step 2: Convert to fraction form
    5,210.51/7,816.91 = 1,512.86/x
  3. Step 3: Cross multiply
    5,210.51x = 7,816.91 × 1,512.86
  4. Step 4: Simplify right side
    5,210.51x = 11,825,843.81
  5. Step 5: Solve for x
    x = 11,825,843.81/5,210.51
  6. Step 6: Final answer
    x = 2,269.62

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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.