Home / 1,865.55-2,572.56-1,305.84

Finding the Fourth Proportional to 1,865.55, 2,572.56 and 1,305.84

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Solution

The fourth proportional to 1,865.55, 2,572.56 and 1,305.84 is: 1,800.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865.55 : 2,572.56 = 1,305.84 : x
  2. Step 2: Convert to fraction form
    1,865.55/2,572.56 = 1,305.84/x
  3. Step 3: Cross multiply
    1,865.55x = 2,572.56 × 1,305.84
  4. Step 4: Simplify right side
    1,865.55x = 3,359,351.75
  5. Step 5: Solve for x
    x = 3,359,351.75/1,865.55
  6. Step 6: Final answer
    x = 1,800.73

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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.