Home / 2,802.80-4,203.29-1,485.78

Finding the Fourth Proportional to 2,802.80, 4,203.29 and 1,485.78

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Solution

The fourth proportional to 2,802.80, 4,203.29 and 1,485.78 is: 2,228.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.80 : 4,203.29 = 1,485.78 : x
  2. Step 2: Convert to fraction form
    2,802.80/4,203.29 = 1,485.78/x
  3. Step 3: Cross multiply
    2,802.80x = 4,203.29 × 1,485.78
  4. Step 4: Simplify right side
    2,802.80x = 6,245,156.79
  5. Step 5: Solve for x
    x = 6,245,156.79/2,802.80
  6. Step 6: Final answer
    x = 2,228.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.