Home / 3,054.86-4,215.69-1,657.61

Finding the Fourth Proportional to 3,054.86, 4,215.69 and 1,657.61

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Solution

The fourth proportional to 3,054.86, 4,215.69 and 1,657.61 is: 2,287.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,054.86 : 4,215.69 = 1,657.61 : x
  2. Step 2: Convert to fraction form
    3,054.86/4,215.69 = 1,657.61/x
  3. Step 3: Cross multiply
    3,054.86x = 4,215.69 × 1,657.61
  4. Step 4: Simplify right side
    3,054.86x = 6,987,969.90
  5. Step 5: Solve for x
    x = 6,987,969.90/3,054.86
  6. Step 6: Final answer
    x = 2,287.49

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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.