Home / 1,918.52-2,877.81-1,264.58

Finding the Fourth Proportional to 1,918.52, 2,877.81 and 1,264.58

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Solution

The fourth proportional to 1,918.52, 2,877.81 and 1,264.58 is: 1,896.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918.52 : 2,877.81 = 1,264.58 : x
  2. Step 2: Convert to fraction form
    1,918.52/2,877.81 = 1,264.58/x
  3. Step 3: Cross multiply
    1,918.52x = 2,877.81 × 1,264.58
  4. Step 4: Simplify right side
    1,918.52x = 3,639,219.74
  5. Step 5: Solve for x
    x = 3,639,219.74/1,918.52
  6. Step 6: Final answer
    x = 1,896.89

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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.