Home / 5,322.51-7,985.39-3,126.60

Finding the Fourth Proportional to 5,322.51, 7,985.39 and 3,126.60

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Solution

The fourth proportional to 5,322.51, 7,985.39 and 3,126.60 is: 4,690.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,322.51 : 7,985.39 = 3,126.60 : x
  2. Step 2: Convert to fraction form
    5,322.51/7,985.39 = 3,126.60/x
  3. Step 3: Cross multiply
    5,322.51x = 7,985.39 × 3,126.60
  4. Step 4: Simplify right side
    5,322.51x = 24,967,104.74
  5. Step 5: Solve for x
    x = 24,967,104.74/5,322.51
  6. Step 6: Final answer
    x = 4,690.85

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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.