Home / 2,480.13-3,720.21-631.26

Finding the Fourth Proportional to 2,480.13, 3,720.21 and 631.26

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Solution

The fourth proportional to 2,480.13, 3,720.21 and 631.26 is: 946.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.13 : 3,720.21 = 631.26 : x
  2. Step 2: Convert to fraction form
    2,480.13/3,720.21 = 631.26/x
  3. Step 3: Cross multiply
    2,480.13x = 3,720.21 × 631.26
  4. Step 4: Simplify right side
    2,480.13x = 2,348,398.01
  5. Step 5: Solve for x
    x = 2,348,398.01/2,480.13
  6. Step 6: Final answer
    x = 946.89

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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.