Home / 5,431.62-7,491.36-3,440.25

Finding the Fourth Proportional to 5,431.62, 7,491.36 and 3,440.25

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Solution

The fourth proportional to 5,431.62, 7,491.36 and 3,440.25 is: 4,744.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.62 : 7,491.36 = 3,440.25 : x
  2. Step 2: Convert to fraction form
    5,431.62/7,491.36 = 3,440.25/x
  3. Step 3: Cross multiply
    5,431.62x = 7,491.36 × 3,440.25
  4. Step 4: Simplify right side
    5,431.62x = 25,772,151.24
  5. Step 5: Solve for x
    x = 25,772,151.24/5,431.62
  6. Step 6: Final answer
    x = 4,744.84

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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.