Home / 7,172.95-10,755.28-2,785.29

Finding the Fourth Proportional to 7,172.95, 10,755.28 and 2,785.29

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Solution

The fourth proportional to 7,172.95, 10,755.28 and 2,785.29 is: 4,176.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172.95 : 10,755.28 = 2,785.29 : x
  2. Step 2: Convert to fraction form
    7,172.95/10,755.28 = 2,785.29/x
  3. Step 3: Cross multiply
    7,172.95x = 10,755.28 × 2,785.29
  4. Step 4: Simplify right side
    7,172.95x = 29,956,573.83
  5. Step 5: Solve for x
    x = 29,956,573.83/7,172.95
  6. Step 6: Final answer
    x = 4,176.33

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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.