Home / 5,171.96-7,130.76-4,226.70

Finding the Fourth Proportional to 5,171.96, 7,130.76 and 4,226.70

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Solution

The fourth proportional to 5,171.96, 7,130.76 and 4,226.70 is: 5,827.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.96 : 7,130.76 = 4,226.70 : x
  2. Step 2: Convert to fraction form
    5,171.96/7,130.76 = 4,226.70/x
  3. Step 3: Cross multiply
    5,171.96x = 7,130.76 × 4,226.70
  4. Step 4: Simplify right side
    5,171.96x = 30,139,583.29
  5. Step 5: Solve for x
    x = 30,139,583.29/5,171.96
  6. Step 6: Final answer
    x = 5,827.50

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Half scale
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Double scale
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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.