Home / 1,787.42-2,681.22-554.96

Finding the Fourth Proportional to 1,787.42, 2,681.22 and 554.96

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Solution

The fourth proportional to 1,787.42, 2,681.22 and 554.96 is: 832.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.42 : 2,681.22 = 554.96 : x
  2. Step 2: Convert to fraction form
    1,787.42/2,681.22 = 554.96/x
  3. Step 3: Cross multiply
    1,787.42x = 2,681.22 × 554.96
  4. Step 4: Simplify right side
    1,787.42x = 1,487,969.85
  5. Step 5: Solve for x
    x = 1,487,969.85/1,787.42
  6. Step 6: Final answer
    x = 832.47

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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.