Home / 2,963.24-4,445.48-988.79

Finding the Fourth Proportional to 2,963.24, 4,445.48 and 988.79

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Solution

The fourth proportional to 2,963.24, 4,445.48 and 988.79 is: 1,483.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,963.24 : 4,445.48 = 988.79 : x
  2. Step 2: Convert to fraction form
    2,963.24/4,445.48 = 988.79/x
  3. Step 3: Cross multiply
    2,963.24x = 4,445.48 × 988.79
  4. Step 4: Simplify right side
    2,963.24x = 4,395,641.23
  5. Step 5: Solve for x
    x = 4,395,641.23/2,963.24
  6. Step 6: Final answer
    x = 1,483.39

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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.