Home / 5,337.12-8,006.46-1,638.80

Finding the Fourth Proportional to 5,337.12, 8,006.46 and 1,638.80

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Solution

The fourth proportional to 5,337.12, 8,006.46 and 1,638.80 is: 2,458.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,337.12 : 8,006.46 = 1,638.80 : x
  2. Step 2: Convert to fraction form
    5,337.12/8,006.46 = 1,638.80/x
  3. Step 3: Cross multiply
    5,337.12x = 8,006.46 × 1,638.80
  4. Step 4: Simplify right side
    5,337.12x = 13,120,986.65
  5. Step 5: Solve for x
    x = 13,120,986.65/5,337.12
  6. Step 6: Final answer
    x = 2,458.44

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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.