Home / 1,916.56-2,877.18-1,261.36

Finding the Fourth Proportional to 1,916.56, 2,877.18 and 1,261.36

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Solution

The fourth proportional to 1,916.56, 2,877.18 and 1,261.36 is: 1,893.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.56 : 2,877.18 = 1,261.36 : x
  2. Step 2: Convert to fraction form
    1,916.56/2,877.18 = 1,261.36/x
  3. Step 3: Cross multiply
    1,916.56x = 2,877.18 × 1,261.36
  4. Step 4: Simplify right side
    1,916.56x = 3,629,159.76
  5. Step 5: Solve for x
    x = 3,629,159.76/1,916.56
  6. Step 6: Final answer
    x = 1,893.58

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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.