Home / 2,810.60-4,218.48-1,424.90

Finding the Fourth Proportional to 2,810.60, 4,218.48 and 1,424.90

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Solution

The fourth proportional to 2,810.60, 4,218.48 and 1,424.90 is: 2,138.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.60 : 4,218.48 = 1,424.90 : x
  2. Step 2: Convert to fraction form
    2,810.60/4,218.48 = 1,424.90/x
  3. Step 3: Cross multiply
    2,810.60x = 4,218.48 × 1,424.90
  4. Step 4: Simplify right side
    2,810.60x = 6,010,912.15
  5. Step 5: Solve for x
    x = 6,010,912.15/2,810.60
  6. Step 6: Final answer
    x = 2,138.66

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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.