Home / 5,259.62-7,258.11-2,991.21

Finding the Fourth Proportional to 5,259.62, 7,258.11 and 2,991.21

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Solution

The fourth proportional to 5,259.62, 7,258.11 and 2,991.21 is: 4,127.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259.62 : 7,258.11 = 2,991.21 : x
  2. Step 2: Convert to fraction form
    5,259.62/7,258.11 = 2,991.21/x
  3. Step 3: Cross multiply
    5,259.62x = 7,258.11 × 2,991.21
  4. Step 4: Simplify right side
    5,259.62x = 21,710,479.97
  5. Step 5: Solve for x
    x = 21,710,479.97/5,259.62
  6. Step 6: Final answer
    x = 4,127.77

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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.