Home / 3,615.43-5,417.65-2,686.66

Finding the Fourth Proportional to 3,615.43, 5,417.65 and 2,686.66

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Solution

The fourth proportional to 3,615.43, 5,417.65 and 2,686.66 is: 4,025.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.43 : 5,417.65 = 2,686.66 : x
  2. Step 2: Convert to fraction form
    3,615.43/5,417.65 = 2,686.66/x
  3. Step 3: Cross multiply
    3,615.43x = 5,417.65 × 2,686.66
  4. Step 4: Simplify right side
    3,615.43x = 14,555,383.55
  5. Step 5: Solve for x
    x = 14,555,383.55/3,615.43
  6. Step 6: Final answer
    x = 4,025.91

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1.5x scale

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.