Home / 5,921.26-8,879.80-1,971.45

Finding the Fourth Proportional to 5,921.26, 8,879.80 and 1,971.45

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Solution

The fourth proportional to 5,921.26, 8,879.80 and 1,971.45 is: 2,956.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.26 : 8,879.80 = 1,971.45 : x
  2. Step 2: Convert to fraction form
    5,921.26/8,879.80 = 1,971.45/x
  3. Step 3: Cross multiply
    5,921.26x = 8,879.80 × 1,971.45
  4. Step 4: Simplify right side
    5,921.26x = 17,506,081.71
  5. Step 5: Solve for x
    x = 17,506,081.71/5,921.26
  6. Step 6: Final answer
    x = 2,956.48

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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.