Home / 5,271.82-7,308.42-4,990.92

Finding the Fourth Proportional to 5,271.82, 7,308.42 and 4,990.92

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Solution

The fourth proportional to 5,271.82, 7,308.42 and 4,990.92 is: 6,919.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.82 : 7,308.42 = 4,990.92 : x
  2. Step 2: Convert to fraction form
    5,271.82/7,308.42 = 4,990.92/x
  3. Step 3: Cross multiply
    5,271.82x = 7,308.42 × 4,990.92
  4. Step 4: Simplify right side
    5,271.82x = 36,475,739.55
  5. Step 5: Solve for x
    x = 36,475,739.55/5,271.82
  6. Step 6: Final answer
    x = 6,919.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.