Home / 5,549.81-7,656.36-3,191.45

Finding the Fourth Proportional to 5,549.81, 7,656.36 and 3,191.45

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Solution

The fourth proportional to 5,549.81, 7,656.36 and 3,191.45 is: 4,402.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,549.81 : 7,656.36 = 3,191.45 : x
  2. Step 2: Convert to fraction form
    5,549.81/7,656.36 = 3,191.45/x
  3. Step 3: Cross multiply
    5,549.81x = 7,656.36 × 3,191.45
  4. Step 4: Simplify right side
    5,549.81x = 24,434,890.12
  5. Step 5: Solve for x
    x = 24,434,890.12/5,549.81
  6. Step 6: Final answer
    x = 4,402.83

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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.