Home / 1,770.78-2,443.05-1,350.45

Finding the Fourth Proportional to 1,770.78, 2,443.05 and 1,350.45

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Solution

The fourth proportional to 1,770.78, 2,443.05 and 1,350.45 is: 1,863.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770.78 : 2,443.05 = 1,350.45 : x
  2. Step 2: Convert to fraction form
    1,770.78/2,443.05 = 1,350.45/x
  3. Step 3: Cross multiply
    1,770.78x = 2,443.05 × 1,350.45
  4. Step 4: Simplify right side
    1,770.78x = 3,299,216.87
  5. Step 5: Solve for x
    x = 3,299,216.87/1,770.78
  6. Step 6: Final answer
    x = 1,863.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.