Home / 1,918.17-2,877.57-944.37

Finding the Fourth Proportional to 1,918.17, 2,877.57 and 944.37

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Solution

The fourth proportional to 1,918.17, 2,877.57 and 944.37 is: 1,416.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918.17 : 2,877.57 = 944.37 : x
  2. Step 2: Convert to fraction form
    1,918.17/2,877.57 = 944.37/x
  3. Step 3: Cross multiply
    1,918.17x = 2,877.57 × 944.37
  4. Step 4: Simplify right side
    1,918.17x = 2,717,490.78
  5. Step 5: Solve for x
    x = 2,717,490.78/1,918.17
  6. Step 6: Final answer
    x = 1,416.71

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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.