Home / 5,453.80-8,180.70-4,838.20

Finding the Fourth Proportional to 5,453.80, 8,180.70 and 4,838.20

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Solution

The fourth proportional to 5,453.80, 8,180.70 and 4,838.20 is: 7,257.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,453.80 : 8,180.70 = 4,838.20 : x
  2. Step 2: Convert to fraction form
    5,453.80/8,180.70 = 4,838.20/x
  3. Step 3: Cross multiply
    5,453.80x = 8,180.70 × 4,838.20
  4. Step 4: Simplify right side
    5,453.80x = 39,579,862.74
  5. Step 5: Solve for x
    x = 39,579,862.74/5,453.80
  6. Step 6: Final answer
    x = 7,257.30

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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.