Home / 4,929.44-7,389-1,966.72

Finding the Fourth Proportional to 4,929.44, 7,389 and 1,966.72

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Solution

The fourth proportional to 4,929.44, 7,389 and 1,966.72 is: 2,948.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,929.44 : 7,389 = 1,966.72 : x
  2. Step 2: Convert to fraction form
    4,929.44/7,389 = 1,966.72/x
  3. Step 3: Cross multiply
    4,929.44x = 7,389 × 1,966.72
  4. Step 4: Simplify right side
    4,929.44x = 14,532,094.08
  5. Step 5: Solve for x
    x = 14,532,094.08/4,929.44
  6. Step 6: Final answer
    x = 2,948.02

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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.