Home / 7,818.95-11,728.56-2,554.02

Finding the Fourth Proportional to 7,818.95, 11,728.56 and 2,554.02

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Solution

The fourth proportional to 7,818.95, 11,728.56 and 2,554.02 is: 3,831.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.95 : 11,728.56 = 2,554.02 : x
  2. Step 2: Convert to fraction form
    7,818.95/11,728.56 = 2,554.02/x
  3. Step 3: Cross multiply
    7,818.95x = 11,728.56 × 2,554.02
  4. Step 4: Simplify right side
    7,818.95x = 29,954,976.81
  5. Step 5: Solve for x
    x = 29,954,976.81/7,818.95
  6. Step 6: Final answer
    x = 3,831.08

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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.