Home / 2,770.89-4,152.72-1,125.51

Finding the Fourth Proportional to 2,770.89, 4,152.72 and 1,125.51

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Solution

The fourth proportional to 2,770.89, 4,152.72 and 1,125.51 is: 1,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.89 : 4,152.72 = 1,125.51 : x
  2. Step 2: Convert to fraction form
    2,770.89/4,152.72 = 1,125.51/x
  3. Step 3: Cross multiply
    2,770.89x = 4,152.72 × 1,125.51
  4. Step 4: Simplify right side
    2,770.89x = 4,673,927.89
  5. Step 5: Solve for x
    x = 4,673,927.89/2,770.89
  6. Step 6: Final answer
    x = 1,686.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.