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Finding the Fourth Proportional to 3,650.40, 5,475.12 and 1,460.40

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Solution

The fourth proportional to 3,650.40, 5,475.12 and 1,460.40 is: 2,190.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,650.40 : 5,475.12 = 1,460.40 : x
  2. Step 2: Convert to fraction form
    3,650.40/5,475.12 = 1,460.40/x
  3. Step 3: Cross multiply
    3,650.40x = 5,475.12 × 1,460.40
  4. Step 4: Simplify right side
    3,650.40x = 7,995,865.25
  5. Step 5: Solve for x
    x = 7,995,865.25/3,650.40
  6. Step 6: Final answer
    x = 2,190.41

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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.