Home / 2,927.90-4,040.80-1,669.37

Finding the Fourth Proportional to 2,927.90, 4,040.80 and 1,669.37

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Solution

The fourth proportional to 2,927.90, 4,040.80 and 1,669.37 is: 2,303.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.90 : 4,040.80 = 1,669.37 : x
  2. Step 2: Convert to fraction form
    2,927.90/4,040.80 = 1,669.37/x
  3. Step 3: Cross multiply
    2,927.90x = 4,040.80 × 1,669.37
  4. Step 4: Simplify right side
    2,927.90x = 6,745,565.92
  5. Step 5: Solve for x
    x = 6,745,565.92/2,927.90
  6. Step 6: Final answer
    x = 2,303.89

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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.