Home / 1,858.16-2,787.14-1,127.54

Finding the Fourth Proportional to 1,858.16, 2,787.14 and 1,127.54

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Solution

The fourth proportional to 1,858.16, 2,787.14 and 1,127.54 is: 1,691.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858.16 : 2,787.14 = 1,127.54 : x
  2. Step 2: Convert to fraction form
    1,858.16/2,787.14 = 1,127.54/x
  3. Step 3: Cross multiply
    1,858.16x = 2,787.14 × 1,127.54
  4. Step 4: Simplify right side
    1,858.16x = 3,142,592.26
  5. Step 5: Solve for x
    x = 3,142,592.26/1,858.16
  6. Step 6: Final answer
    x = 1,691.24

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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.