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Finding the Fourth Proportional to 5,281.97, 7,289.19 and 2,924.19

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Solution

The fourth proportional to 5,281.97, 7,289.19 and 2,924.19 is: 4,035.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.97 : 7,289.19 = 2,924.19 : x
  2. Step 2: Convert to fraction form
    5,281.97/7,289.19 = 2,924.19/x
  3. Step 3: Cross multiply
    5,281.97x = 7,289.19 × 2,924.19
  4. Step 4: Simplify right side
    5,281.97x = 21,314,976.51
  5. Step 5: Solve for x
    x = 21,314,976.51/5,281.97
  6. Step 6: Final answer
    x = 4,035.43

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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.