Home / 1,788.85-2,683.27-1,440.55

Finding the Fourth Proportional to 1,788.85, 2,683.27 and 1,440.55

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Solution

The fourth proportional to 1,788.85, 2,683.27 and 1,440.55 is: 2,160.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788.85 : 2,683.27 = 1,440.55 : x
  2. Step 2: Convert to fraction form
    1,788.85/2,683.27 = 1,440.55/x
  3. Step 3: Cross multiply
    1,788.85x = 2,683.27 × 1,440.55
  4. Step 4: Simplify right side
    1,788.85x = 3,865,381.49
  5. Step 5: Solve for x
    x = 3,865,381.49/1,788.85
  6. Step 6: Final answer
    x = 2,160.82

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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.