Home / 3,955.52-5,459.45-3,291.72

Finding the Fourth Proportional to 3,955.52, 5,459.45 and 3,291.72

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Solution

The fourth proportional to 3,955.52, 5,459.45 and 3,291.72 is: 4,543.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.52 : 5,459.45 = 3,291.72 : x
  2. Step 2: Convert to fraction form
    3,955.52/5,459.45 = 3,291.72/x
  3. Step 3: Cross multiply
    3,955.52x = 5,459.45 × 3,291.72
  4. Step 4: Simplify right side
    3,955.52x = 17,970,980.75
  5. Step 5: Solve for x
    x = 17,970,980.75/3,955.52
  6. Step 6: Final answer
    x = 4,543.27

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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.