Home / 1,823.79-2,736.09-525.21

Finding the Fourth Proportional to 1,823.79, 2,736.09 and 525.21

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Solution

The fourth proportional to 1,823.79, 2,736.09 and 525.21 is: 787.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,823.79 : 2,736.09 = 525.21 : x
  2. Step 2: Convert to fraction form
    1,823.79/2,736.09 = 525.21/x
  3. Step 3: Cross multiply
    1,823.79x = 2,736.09 × 525.21
  4. Step 4: Simplify right side
    1,823.79x = 1,437,021.83
  5. Step 5: Solve for x
    x = 1,437,021.83/1,823.79
  6. Step 6: Final answer
    x = 787.93

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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.