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Finding the Fourth Proportional to 3,548.63, 4,897.11 and 1,977.03

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Solution

The fourth proportional to 3,548.63, 4,897.11 and 1,977.03 is: 2,728.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,548.63 : 4,897.11 = 1,977.03 : x
  2. Step 2: Convert to fraction form
    3,548.63/4,897.11 = 1,977.03/x
  3. Step 3: Cross multiply
    3,548.63x = 4,897.11 × 1,977.03
  4. Step 4: Simplify right side
    3,548.63x = 9,681,733.38
  5. Step 5: Solve for x
    x = 9,681,733.38/3,548.63
  6. Step 6: Final answer
    x = 2,728.31

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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.