Home / 3,955.60-5,455.00-2,539.72

Finding the Fourth Proportional to 3,955.60, 5,455.00 and 2,539.72

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Solution

The fourth proportional to 3,955.60, 5,455.00 and 2,539.72 is: 3,502.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.60 : 5,455.00 = 2,539.72 : x
  2. Step 2: Convert to fraction form
    3,955.60/5,455.00 = 2,539.72/x
  3. Step 3: Cross multiply
    3,955.60x = 5,455.00 × 2,539.72
  4. Step 4: Simplify right side
    3,955.60x = 13,854,182.59
  5. Step 5: Solve for x
    x = 13,854,182.59/3,955.60
  6. Step 6: Final answer
    x = 3,502.42

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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.