Home / 2,929.40-4,042.80-1,670.06

Finding the Fourth Proportional to 2,929.40, 4,042.80 and 1,670.06

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Solution

The fourth proportional to 2,929.40, 4,042.80 and 1,670.06 is: 2,304.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.40 : 4,042.80 = 1,670.06 : x
  2. Step 2: Convert to fraction form
    2,929.40/4,042.80 = 1,670.06/x
  3. Step 3: Cross multiply
    2,929.40x = 4,042.80 × 1,670.06
  4. Step 4: Simplify right side
    2,929.40x = 6,751,698.35
  5. Step 5: Solve for x
    x = 6,751,698.35/2,929.40
  6. Step 6: Final answer
    x = 2,304.81

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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.