Home / 4,909.80-7,365.60-1,623

Finding the Fourth Proportional to 4,909.80, 7,365.60 and 1,623

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Solution

The fourth proportional to 4,909.80, 7,365.60 and 1,623 is: 2,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.80 : 7,365.60 = 1,623 : x
  2. Step 2: Convert to fraction form
    4,909.80/7,365.60 = 1,623/x
  3. Step 3: Cross multiply
    4,909.80x = 7,365.60 × 1,623
  4. Step 4: Simplify right side
    4,909.80x = 11,954,368.80
  5. Step 5: Solve for x
    x = 11,954,368.80/4,909.80
  6. Step 6: Final answer
    x = 2,434.80

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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.