Home / 7,452.37-11,178.55-1,905.72

Finding the Fourth Proportional to 7,452.37, 11,178.55 and 1,905.72

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Solution

The fourth proportional to 7,452.37, 11,178.55 and 1,905.72 is: 2,858.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,452.37 : 11,178.55 = 1,905.72 : x
  2. Step 2: Convert to fraction form
    7,452.37/11,178.55 = 1,905.72/x
  3. Step 3: Cross multiply
    7,452.37x = 11,178.55 × 1,905.72
  4. Step 4: Simplify right side
    7,452.37x = 21,303,186.31
  5. Step 5: Solve for x
    x = 21,303,186.31/7,452.37
  6. Step 6: Final answer
    x = 2,858.58

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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.