Home / 5,197.05-7,796.18-1,909.40

Finding the Fourth Proportional to 5,197.05, 7,796.18 and 1,909.40

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Solution

The fourth proportional to 5,197.05, 7,796.18 and 1,909.40 is: 2,864.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197.05 : 7,796.18 = 1,909.40 : x
  2. Step 2: Convert to fraction form
    5,197.05/7,796.18 = 1,909.40/x
  3. Step 3: Cross multiply
    5,197.05x = 7,796.18 × 1,909.40
  4. Step 4: Simplify right side
    5,197.05x = 14,885,991.88
  5. Step 5: Solve for x
    x = 14,885,991.88/5,197.05
  6. Step 6: Final answer
    x = 2,864.32

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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.