Home / 5,219.29-7,829.80-2,586.92

Finding the Fourth Proportional to 5,219.29, 7,829.80 and 2,586.92

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Solution

The fourth proportional to 5,219.29, 7,829.80 and 2,586.92 is: 3,880.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.29 : 7,829.80 = 2,586.92 : x
  2. Step 2: Convert to fraction form
    5,219.29/7,829.80 = 2,586.92/x
  3. Step 3: Cross multiply
    5,219.29x = 7,829.80 × 2,586.92
  4. Step 4: Simplify right side
    5,219.29x = 20,255,020.60
  5. Step 5: Solve for x
    x = 20,255,020.60/5,219.29
  6. Step 6: Final answer
    x = 3,880.80

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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.