Home / 5,081.40-7,617.96-3,228.72

Finding the Fourth Proportional to 5,081.40, 7,617.96 and 3,228.72

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Solution

The fourth proportional to 5,081.40, 7,617.96 and 3,228.72 is: 4,840.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.40 : 7,617.96 = 3,228.72 : x
  2. Step 2: Convert to fraction form
    5,081.40/7,617.96 = 3,228.72/x
  3. Step 3: Cross multiply
    5,081.40x = 7,617.96 × 3,228.72
  4. Step 4: Simplify right side
    5,081.40x = 24,596,259.81
  5. Step 5: Solve for x
    x = 24,596,259.81/5,081.40
  6. Step 6: Final answer
    x = 4,840.45

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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.