Home / 5,815.36-8,717.90-2,116.94

Finding the Fourth Proportional to 5,815.36, 8,717.90 and 2,116.94

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Solution

The fourth proportional to 5,815.36, 8,717.90 and 2,116.94 is: 3,173.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.36 : 8,717.90 = 2,116.94 : x
  2. Step 2: Convert to fraction form
    5,815.36/8,717.90 = 2,116.94/x
  3. Step 3: Cross multiply
    5,815.36x = 8,717.90 × 2,116.94
  4. Step 4: Simplify right side
    5,815.36x = 18,455,271.23
  5. Step 5: Solve for x
    x = 18,455,271.23/5,815.36
  6. Step 6: Final answer
    x = 3,173.54

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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.