Home / 7,929.47-11,895.58-2,664.99

Finding the Fourth Proportional to 7,929.47, 11,895.58 and 2,664.99

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Solution

The fourth proportional to 7,929.47, 11,895.58 and 2,664.99 is: 3,997.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.47 : 11,895.58 = 2,664.99 : x
  2. Step 2: Convert to fraction form
    7,929.47/11,895.58 = 2,664.99/x
  3. Step 3: Cross multiply
    7,929.47x = 11,895.58 × 2,664.99
  4. Step 4: Simplify right side
    7,929.47x = 31,701,595.08
  5. Step 5: Solve for x
    x = 31,701,595.08/7,929.47
  6. Step 6: Final answer
    x = 3,997.95

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1.5x scale

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.