Home / 3,923.40-5,883.78-1,582.80

Finding the Fourth Proportional to 3,923.40, 5,883.78 and 1,582.80

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Solution

The fourth proportional to 3,923.40, 5,883.78 and 1,582.80 is: 2,373.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.40 : 5,883.78 = 1,582.80 : x
  2. Step 2: Convert to fraction form
    3,923.40/5,883.78 = 1,582.80/x
  3. Step 3: Cross multiply
    3,923.40x = 5,883.78 × 1,582.80
  4. Step 4: Simplify right side
    3,923.40x = 9,312,846.98
  5. Step 5: Solve for x
    x = 9,312,846.98/3,923.40
  6. Step 6: Final answer
    x = 2,373.67

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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.