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Finding the Fourth Proportional to 5,987.60, 8,262.60 and 3,860.72

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Solution

The fourth proportional to 5,987.60, 8,262.60 and 3,860.72 is: 5,327.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987.60 : 8,262.60 = 3,860.72 : x
  2. Step 2: Convert to fraction form
    5,987.60/8,262.60 = 3,860.72/x
  3. Step 3: Cross multiply
    5,987.60x = 8,262.60 × 3,860.72
  4. Step 4: Simplify right side
    5,987.60x = 31,899,585.07
  5. Step 5: Solve for x
    x = 31,899,585.07/5,987.60
  6. Step 6: Final answer
    x = 5,327.61

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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.