Home / 2,585.43-3,878.34-1,771.77

Finding the Fourth Proportional to 2,585.43, 3,878.34 and 1,771.77

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Solution

The fourth proportional to 2,585.43, 3,878.34 and 1,771.77 is: 2,657.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585.43 : 3,878.34 = 1,771.77 : x
  2. Step 2: Convert to fraction form
    2,585.43/3,878.34 = 1,771.77/x
  3. Step 3: Cross multiply
    2,585.43x = 3,878.34 × 1,771.77
  4. Step 4: Simplify right side
    2,585.43x = 6,871,526.46
  5. Step 5: Solve for x
    x = 6,871,526.46/2,585.43
  6. Step 6: Final answer
    x = 2,657.79

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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.