Home / 5,186.32-7,770.68-3,130

Finding the Fourth Proportional to 5,186.32, 7,770.68 and 3,130

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Solution

The fourth proportional to 5,186.32, 7,770.68 and 3,130 is: 4,689.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.32 : 7,770.68 = 3,130 : x
  2. Step 2: Convert to fraction form
    5,186.32/7,770.68 = 3,130/x
  3. Step 3: Cross multiply
    5,186.32x = 7,770.68 × 3,130
  4. Step 4: Simplify right side
    5,186.32x = 24,322,228.40
  5. Step 5: Solve for x
    x = 24,322,228.40/5,186.32
  6. Step 6: Final answer
    x = 4,689.69

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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.