Home / 2,147.24-3,219.60-914.02

Finding the Fourth Proportional to 2,147.24, 3,219.60 and 914.02

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Solution

The fourth proportional to 2,147.24, 3,219.60 and 914.02 is: 1,370.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.24 : 3,219.60 = 914.02 : x
  2. Step 2: Convert to fraction form
    2,147.24/3,219.60 = 914.02/x
  3. Step 3: Cross multiply
    2,147.24x = 3,219.60 × 914.02
  4. Step 4: Simplify right side
    2,147.24x = 2,942,770.74
  5. Step 5: Solve for x
    x = 2,942,770.74/2,147.24
  6. Step 6: Final answer
    x = 1,370.49

Related Problems

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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.