Home / 5,281.44-7,288.40-2,923.80

Finding the Fourth Proportional to 5,281.44, 7,288.40 and 2,923.80

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Solution

The fourth proportional to 5,281.44, 7,288.40 and 2,923.80 is: 4,034.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.44 : 7,288.40 = 2,923.80 : x
  2. Step 2: Convert to fraction form
    5,281.44/7,288.40 = 2,923.80/x
  3. Step 3: Cross multiply
    5,281.44x = 7,288.40 × 2,923.80
  4. Step 4: Simplify right side
    5,281.44x = 21,309,823.92
  5. Step 5: Solve for x
    x = 21,309,823.92/5,281.44
  6. Step 6: Final answer
    x = 4,034.85

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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.