Home / 7,954.07-10,981.59-5,122.85

Finding the Fourth Proportional to 7,954.07, 10,981.59 and 5,122.85

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Solution

The fourth proportional to 7,954.07, 10,981.59 and 5,122.85 is: 7,072.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,954.07 : 10,981.59 = 5,122.85 : x
  2. Step 2: Convert to fraction form
    7,954.07/10,981.59 = 5,122.85/x
  3. Step 3: Cross multiply
    7,954.07x = 10,981.59 × 5,122.85
  4. Step 4: Simplify right side
    7,954.07x = 56,257,038.33
  5. Step 5: Solve for x
    x = 56,257,038.33/7,954.07
  6. Step 6: Final answer
    x = 7,072.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.