Home / 1,787.75-2,466.51-1,079.82

Finding the Fourth Proportional to 1,787.75, 2,466.51 and 1,079.82

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Solution

The fourth proportional to 1,787.75, 2,466.51 and 1,079.82 is: 1,489.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.75 : 2,466.51 = 1,079.82 : x
  2. Step 2: Convert to fraction form
    1,787.75/2,466.51 = 1,079.82/x
  3. Step 3: Cross multiply
    1,787.75x = 2,466.51 × 1,079.82
  4. Step 4: Simplify right side
    1,787.75x = 2,663,386.83
  5. Step 5: Solve for x
    x = 2,663,386.83/1,787.75
  6. Step 6: Final answer
    x = 1,489.80

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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.