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Finding the Fourth Proportional to 5,402.19, 7,455.02 and 2,918.19

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Solution

The fourth proportional to 5,402.19, 7,455.02 and 2,918.19 is: 4,027.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.19 : 7,455.02 = 2,918.19 : x
  2. Step 2: Convert to fraction form
    5,402.19/7,455.02 = 2,918.19/x
  3. Step 3: Cross multiply
    5,402.19x = 7,455.02 × 2,918.19
  4. Step 4: Simplify right side
    5,402.19x = 21,755,164.81
  5. Step 5: Solve for x
    x = 21,755,164.81/5,402.19
  6. Step 6: Final answer
    x = 4,027.10

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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.