Home / 7,123.55-10,685.32-2,193.08

Finding the Fourth Proportional to 7,123.55, 10,685.32 and 2,193.08

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Solution

The fourth proportional to 7,123.55, 10,685.32 and 2,193.08 is: 3,289.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,123.55 : 10,685.32 = 2,193.08 : x
  2. Step 2: Convert to fraction form
    7,123.55/10,685.32 = 2,193.08/x
  3. Step 3: Cross multiply
    7,123.55x = 10,685.32 × 2,193.08
  4. Step 4: Simplify right side
    7,123.55x = 23,433,702.68
  5. Step 5: Solve for x
    x = 23,433,702.68/7,123.55
  6. Step 6: Final answer
    x = 3,289.61

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Half scale
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Double scale
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Similar ratio
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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.