Home / 5,987.61-8,260.73-3,999.47

Finding the Fourth Proportional to 5,987.61, 8,260.73 and 3,999.47

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Solution

The fourth proportional to 5,987.61, 8,260.73 and 3,999.47 is: 5,517.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987.61 : 8,260.73 = 3,999.47 : x
  2. Step 2: Convert to fraction form
    5,987.61/8,260.73 = 3,999.47/x
  3. Step 3: Cross multiply
    5,987.61x = 8,260.73 × 3,999.47
  4. Step 4: Simplify right side
    5,987.61x = 33,038,480.51
  5. Step 5: Solve for x
    x = 33,038,480.51/5,987.61
  6. Step 6: Final answer
    x = 5,517.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.