Home / 5,626.87-8,440.98-1,929.76

Finding the Fourth Proportional to 5,626.87, 8,440.98 and 1,929.76

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Solution

The fourth proportional to 5,626.87, 8,440.98 and 1,929.76 is: 2,894.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,626.87 : 8,440.98 = 1,929.76 : x
  2. Step 2: Convert to fraction form
    5,626.87/8,440.98 = 1,929.76/x
  3. Step 3: Cross multiply
    5,626.87x = 8,440.98 × 1,929.76
  4. Step 4: Simplify right side
    5,626.87x = 16,289,013.71
  5. Step 5: Solve for x
    x = 16,289,013.71/5,626.87
  6. Step 6: Final answer
    x = 2,894.86

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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.