Home / 5,913.07-8,155.41-3,788.80

Finding the Fourth Proportional to 5,913.07, 8,155.41 and 3,788.80

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Solution

The fourth proportional to 5,913.07, 8,155.41 and 3,788.80 is: 5,225.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,913.07 : 8,155.41 = 3,788.80 : x
  2. Step 2: Convert to fraction form
    5,913.07/8,155.41 = 3,788.80/x
  3. Step 3: Cross multiply
    5,913.07x = 8,155.41 × 3,788.80
  4. Step 4: Simplify right side
    5,913.07x = 30,899,217.41
  5. Step 5: Solve for x
    x = 30,899,217.41/5,913.07
  6. Step 6: Final answer
    x = 5,225.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.