Home / 7,174.06-10,761.71-1,979.93

Finding the Fourth Proportional to 7,174.06, 10,761.71 and 1,979.93

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Solution

The fourth proportional to 7,174.06, 10,761.71 and 1,979.93 is: 2,970.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,174.06 : 10,761.71 = 1,979.93 : x
  2. Step 2: Convert to fraction form
    7,174.06/10,761.71 = 1,979.93/x
  3. Step 3: Cross multiply
    7,174.06x = 10,761.71 × 1,979.93
  4. Step 4: Simplify right side
    7,174.06x = 21,307,449.48
  5. Step 5: Solve for x
    x = 21,307,449.48/7,174.06
  6. Step 6: Final answer
    x = 2,970.07

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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.