Home / 5,513.70-8,270.60-1,618.18

Finding the Fourth Proportional to 5,513.70, 8,270.60 and 1,618.18

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Solution

The fourth proportional to 5,513.70, 8,270.60 and 1,618.18 is: 2,427.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,513.70 : 8,270.60 = 1,618.18 : x
  2. Step 2: Convert to fraction form
    5,513.70/8,270.60 = 1,618.18/x
  3. Step 3: Cross multiply
    5,513.70x = 8,270.60 × 1,618.18
  4. Step 4: Simplify right side
    5,513.70x = 13,383,319.51
  5. Step 5: Solve for x
    x = 13,383,319.51/5,513.70
  6. Step 6: Final answer
    x = 2,427.28

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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.