Home / 5,267.55-7,896.74-1,979.76

Finding the Fourth Proportional to 5,267.55, 7,896.74 and 1,979.76

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Solution

The fourth proportional to 5,267.55, 7,896.74 and 1,979.76 is: 2,967.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,267.55 : 7,896.74 = 1,979.76 : x
  2. Step 2: Convert to fraction form
    5,267.55/7,896.74 = 1,979.76/x
  3. Step 3: Cross multiply
    5,267.55x = 7,896.74 × 1,979.76
  4. Step 4: Simplify right side
    5,267.55x = 15,633,640.08
  5. Step 5: Solve for x
    x = 15,633,640.08/5,267.55
  6. Step 6: Final answer
    x = 2,967.91

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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.