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Finding the Fourth Proportional to 3,546.02, 5,319.04 and 1,985.16

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Solution

The fourth proportional to 3,546.02, 5,319.04 and 1,985.16 is: 2,977.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,546.02 : 5,319.04 = 1,985.16 : x
  2. Step 2: Convert to fraction form
    3,546.02/5,319.04 = 1,985.16/x
  3. Step 3: Cross multiply
    3,546.02x = 5,319.04 × 1,985.16
  4. Step 4: Simplify right side
    3,546.02x = 10,559,145.45
  5. Step 5: Solve for x
    x = 10,559,145.45/3,546.02
  6. Step 6: Final answer
    x = 2,977.75

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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.