Home / 5,090.37-7,024.70-2,821.86

Finding the Fourth Proportional to 5,090.37, 7,024.70 and 2,821.86

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Solution

The fourth proportional to 5,090.37, 7,024.70 and 2,821.86 is: 3,894.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.37 : 7,024.70 = 2,821.86 : x
  2. Step 2: Convert to fraction form
    5,090.37/7,024.70 = 2,821.86/x
  3. Step 3: Cross multiply
    5,090.37x = 7,024.70 × 2,821.86
  4. Step 4: Simplify right side
    5,090.37x = 19,822,705.83
  5. Step 5: Solve for x
    x = 19,822,705.83/5,090.37
  6. Step 6: Final answer
    x = 3,894.16

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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.