Home / 7,670.30-11,500.05-2,986.35

Finding the Fourth Proportional to 7,670.30, 11,500.05 and 2,986.35

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Solution

The fourth proportional to 7,670.30, 11,500.05 and 2,986.35 is: 4,477.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,670.30 : 11,500.05 = 2,986.35 : x
  2. Step 2: Convert to fraction form
    7,670.30/11,500.05 = 2,986.35/x
  3. Step 3: Cross multiply
    7,670.30x = 11,500.05 × 2,986.35
  4. Step 4: Simplify right side
    7,670.30x = 34,343,142.39
  5. Step 5: Solve for x
    x = 34,343,142.39/7,670.30
  6. Step 6: Final answer
    x = 4,477.42

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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.