Home / 1,787.96-2,682.18-555.14

Finding the Fourth Proportional to 1,787.96, 2,682.18 and 555.14

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Solution

The fourth proportional to 1,787.96, 2,682.18 and 555.14 is: 832.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.96 : 2,682.18 = 555.14 : x
  2. Step 2: Convert to fraction form
    1,787.96/2,682.18 = 555.14/x
  3. Step 3: Cross multiply
    1,787.96x = 2,682.18 × 555.14
  4. Step 4: Simplify right side
    1,787.96x = 1,488,971.99
  5. Step 5: Solve for x
    x = 1,488,971.99/1,787.96
  6. Step 6: Final answer
    x = 832.78

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1.5x scale

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.