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Finding the Fourth Proportional to 2,551.02, 3,517.02 and 1,953.90

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Solution

The fourth proportional to 2,551.02, 3,517.02 and 1,953.90 is: 2,693.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.02 : 3,517.02 = 1,953.90 : x
  2. Step 2: Convert to fraction form
    2,551.02/3,517.02 = 1,953.90/x
  3. Step 3: Cross multiply
    2,551.02x = 3,517.02 × 1,953.90
  4. Step 4: Simplify right side
    2,551.02x = 6,871,905.38
  5. Step 5: Solve for x
    x = 6,871,905.38/2,551.02
  6. Step 6: Final answer
    x = 2,693.79

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Half scale
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Double scale
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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.