Home / 1,787.60-2,681.37-554.99

Finding the Fourth Proportional to 1,787.60, 2,681.37 and 554.99

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Solution

The fourth proportional to 1,787.60, 2,681.37 and 554.99 is: 832.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.60 : 2,681.37 = 554.99 : x
  2. Step 2: Convert to fraction form
    1,787.60/2,681.37 = 554.99/x
  3. Step 3: Cross multiply
    1,787.60x = 2,681.37 × 554.99
  4. Step 4: Simplify right side
    1,787.60x = 1,488,120.13
  5. Step 5: Solve for x
    x = 1,488,120.13/1,787.60
  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.