Home / 4,480.31-6,720.50-1,402.31

Finding the Fourth Proportional to 4,480.31, 6,720.50 and 1,402.31

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Solution

The fourth proportional to 4,480.31, 6,720.50 and 1,402.31 is: 2,103.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,480.31 : 6,720.50 = 1,402.31 : x
  2. Step 2: Convert to fraction form
    4,480.31/6,720.50 = 1,402.31/x
  3. Step 3: Cross multiply
    4,480.31x = 6,720.50 × 1,402.31
  4. Step 4: Simplify right side
    4,480.31x = 9,424,244.66
  5. Step 5: Solve for x
    x = 9,424,244.66/4,480.31
  6. Step 6: Final answer
    x = 2,103.48

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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.