Home / 1,819.40-2,728.85-586.67

Finding the Fourth Proportional to 1,819.40, 2,728.85 and 586.67

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Solution

The fourth proportional to 1,819.40, 2,728.85 and 586.67 is: 879.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.40 : 2,728.85 = 586.67 : x
  2. Step 2: Convert to fraction form
    1,819.40/2,728.85 = 586.67/x
  3. Step 3: Cross multiply
    1,819.40x = 2,728.85 × 586.67
  4. Step 4: Simplify right side
    1,819.40x = 1,600,934.43
  5. Step 5: Solve for x
    x = 1,600,934.43/1,819.40
  6. Step 6: Final answer
    x = 879.92

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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.