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Finding the Fourth Proportional to 5,535, 7,638.20 and 3,017.13

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Solution

The fourth proportional to 5,535, 7,638.20 and 3,017.13 is: 4,163.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,535 : 7,638.20 = 3,017.13 : x
  2. Step 2: Convert to fraction form
    5,535/7,638.20 = 3,017.13/x
  3. Step 3: Cross multiply
    5,535x = 7,638.20 × 3,017.13
  4. Step 4: Simplify right side
    5,535x = 23,045,427.28
  5. Step 5: Solve for x
    x = 23,045,427.28/5,535
  6. Step 6: Final answer
    x = 4,163.58

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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.