Home / 5,476.50-8,215.38-1,778.58

Finding the Fourth Proportional to 5,476.50, 8,215.38 and 1,778.58

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Solution

The fourth proportional to 5,476.50, 8,215.38 and 1,778.58 is: 2,668.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,476.50 : 8,215.38 = 1,778.58 : x
  2. Step 2: Convert to fraction form
    5,476.50/8,215.38 = 1,778.58/x
  3. Step 3: Cross multiply
    5,476.50x = 8,215.38 × 1,778.58
  4. Step 4: Simplify right side
    5,476.50x = 14,611,710.56
  5. Step 5: Solve for x
    x = 14,611,710.56/5,476.50
  6. Step 6: Final answer
    x = 2,668.07

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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.