Home / 4,188.74-5,780.44-2,420.52

Finding the Fourth Proportional to 4,188.74, 5,780.44 and 2,420.52

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Solution

The fourth proportional to 4,188.74, 5,780.44 and 2,420.52 is: 3,340.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.74 : 5,780.44 = 2,420.52 : x
  2. Step 2: Convert to fraction form
    4,188.74/5,780.44 = 2,420.52/x
  3. Step 3: Cross multiply
    4,188.74x = 5,780.44 × 2,420.52
  4. Step 4: Simplify right side
    4,188.74x = 13,991,670.63
  5. Step 5: Solve for x
    x = 13,991,670.63/4,188.74
  6. Step 6: Final answer
    x = 3,340.31

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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.