Home / 5,237.64-7,227.78-2,879.76

Finding the Fourth Proportional to 5,237.64, 7,227.78 and 2,879.76

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Solution

The fourth proportional to 5,237.64, 7,227.78 and 2,879.76 is: 3,973.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237.64 : 7,227.78 = 2,879.76 : x
  2. Step 2: Convert to fraction form
    5,237.64/7,227.78 = 2,879.76/x
  3. Step 3: Cross multiply
    5,237.64x = 7,227.78 × 2,879.76
  4. Step 4: Simplify right side
    5,237.64x = 20,814,271.73
  5. Step 5: Solve for x
    x = 20,814,271.73/5,237.64
  6. Step 6: Final answer
    x = 3,973.98

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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.