Home / 3,635.85-5,017.47-2,143.77

Finding the Fourth Proportional to 3,635.85, 5,017.47 and 2,143.77

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Solution

The fourth proportional to 3,635.85, 5,017.47 and 2,143.77 is: 2,958.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,635.85 : 5,017.47 = 2,143.77 : x
  2. Step 2: Convert to fraction form
    3,635.85/5,017.47 = 2,143.77/x
  3. Step 3: Cross multiply
    3,635.85x = 5,017.47 × 2,143.77
  4. Step 4: Simplify right side
    3,635.85x = 10,756,301.66
  5. Step 5: Solve for x
    x = 10,756,301.66/3,635.85
  6. Step 6: Final answer
    x = 2,958.40

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1.5x scale

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.