Home / 7,964.44-11,946.78-3,031.72

Finding the Fourth Proportional to 7,964.44, 11,946.78 and 3,031.72

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Solution

The fourth proportional to 7,964.44, 11,946.78 and 3,031.72 is: 4,547.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.44 : 11,946.78 = 3,031.72 : x
  2. Step 2: Convert to fraction form
    7,964.44/11,946.78 = 3,031.72/x
  3. Step 3: Cross multiply
    7,964.44x = 11,946.78 × 3,031.72
  4. Step 4: Simplify right side
    7,964.44x = 36,219,291.86
  5. Step 5: Solve for x
    x = 36,219,291.86/7,964.44
  6. Step 6: Final answer
    x = 4,547.63

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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.