Home / 1,584.21-2,379.05-1,340.90

Finding the Fourth Proportional to 1,584.21, 2,379.05 and 1,340.90

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Solution

The fourth proportional to 1,584.21, 2,379.05 and 1,340.90 is: 2,013.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,584.21 : 2,379.05 = 1,340.90 : x
  2. Step 2: Convert to fraction form
    1,584.21/2,379.05 = 1,340.90/x
  3. Step 3: Cross multiply
    1,584.21x = 2,379.05 × 1,340.90
  4. Step 4: Simplify right side
    1,584.21x = 3,190,073.11
  5. Step 5: Solve for x
    x = 3,190,073.11/1,584.21
  6. Step 6: Final answer
    x = 2,013.67

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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.