Home / 2,810.86-4,216.32-1,423.90

Finding the Fourth Proportional to 2,810.86, 4,216.32 and 1,423.90

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Solution

The fourth proportional to 2,810.86, 4,216.32 and 1,423.90 is: 2,135.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.86 : 4,216.32 = 1,423.90 : x
  2. Step 2: Convert to fraction form
    2,810.86/4,216.32 = 1,423.90/x
  3. Step 3: Cross multiply
    2,810.86x = 4,216.32 × 1,423.90
  4. Step 4: Simplify right side
    2,810.86x = 6,003,618.05
  5. Step 5: Solve for x
    x = 6,003,618.05/2,810.86
  6. Step 6: Final answer
    x = 2,135.87

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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.