Home / 2,770.31-4,160.18-1,851.77

Finding the Fourth Proportional to 2,770.31, 4,160.18 and 1,851.77

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Solution

The fourth proportional to 2,770.31, 4,160.18 and 1,851.77 is: 2,780.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.31 : 4,160.18 = 1,851.77 : x
  2. Step 2: Convert to fraction form
    2,770.31/4,160.18 = 1,851.77/x
  3. Step 3: Cross multiply
    2,770.31x = 4,160.18 × 1,851.77
  4. Step 4: Simplify right side
    2,770.31x = 7,703,697.66
  5. Step 5: Solve for x
    x = 7,703,697.66/2,770.31
  6. Step 6: Final answer
    x = 2,780.80

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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.