Home / 5,146.55-7,103.41-2,909.72

Finding the Fourth Proportional to 5,146.55, 7,103.41 and 2,909.72

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Solution

The fourth proportional to 5,146.55, 7,103.41 and 2,909.72 is: 4,016.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.55 : 7,103.41 = 2,909.72 : x
  2. Step 2: Convert to fraction form
    5,146.55/7,103.41 = 2,909.72/x
  3. Step 3: Cross multiply
    5,146.55x = 7,103.41 × 2,909.72
  4. Step 4: Simplify right side
    5,146.55x = 20,668,944.63
  5. Step 5: Solve for x
    x = 20,668,944.63/5,146.55
  6. Step 6: Final answer
    x = 4,016.08

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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.