Home / 1,872.30-2,580.90-1,573.41

Finding the Fourth Proportional to 1,872.30, 2,580.90 and 1,573.41

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Solution

The fourth proportional to 1,872.30, 2,580.90 and 1,573.41 is: 2,168.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.30 : 2,580.90 = 1,573.41 : x
  2. Step 2: Convert to fraction form
    1,872.30/2,580.90 = 1,573.41/x
  3. Step 3: Cross multiply
    1,872.30x = 2,580.90 × 1,573.41
  4. Step 4: Simplify right side
    1,872.30x = 4,060,813.87
  5. Step 5: Solve for x
    x = 4,060,813.87/1,872.30
  6. Step 6: Final answer
    x = 2,168.89

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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.