Home / 5,209.28-7,184.40-4,690.88

Finding the Fourth Proportional to 5,209.28, 7,184.40 and 4,690.88

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Solution

The fourth proportional to 5,209.28, 7,184.40 and 4,690.88 is: 6,469.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.28 : 7,184.40 = 4,690.88 : x
  2. Step 2: Convert to fraction form
    5,209.28/7,184.40 = 4,690.88/x
  3. Step 3: Cross multiply
    5,209.28x = 7,184.40 × 4,690.88
  4. Step 4: Simplify right side
    5,209.28x = 33,701,158.27
  5. Step 5: Solve for x
    x = 33,701,158.27/5,209.28
  6. Step 6: Final answer
    x = 6,469.45

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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.