Home / 2,816.10-4,220.51-1,890.27

Finding the Fourth Proportional to 2,816.10, 4,220.51 and 1,890.27

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Solution

The fourth proportional to 2,816.10, 4,220.51 and 1,890.27 is: 2,832.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.10 : 4,220.51 = 1,890.27 : x
  2. Step 2: Convert to fraction form
    2,816.10/4,220.51 = 1,890.27/x
  3. Step 3: Cross multiply
    2,816.10x = 4,220.51 × 1,890.27
  4. Step 4: Simplify right side
    2,816.10x = 7,977,893.99
  5. Step 5: Solve for x
    x = 7,977,893.99/2,816.10
  6. Step 6: Final answer
    x = 2,832.96

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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.