Home / 4,545.36-6,813.78-4,139.58

Finding the Fourth Proportional to 4,545.36, 6,813.78 and 4,139.58

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Solution

The fourth proportional to 4,545.36, 6,813.78 and 4,139.58 is: 6,205.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,545.36 : 6,813.78 = 4,139.58 : x
  2. Step 2: Convert to fraction form
    4,545.36/6,813.78 = 4,139.58/x
  3. Step 3: Cross multiply
    4,545.36x = 6,813.78 × 4,139.58
  4. Step 4: Simplify right side
    4,545.36x = 28,206,187.41
  5. Step 5: Solve for x
    x = 28,206,187.41/4,545.36
  6. Step 6: Final answer
    x = 6,205.49

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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.