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Finding the Fourth Proportional to 5,388.88, 8,085.02 and 3,426.74

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Solution

The fourth proportional to 5,388.88, 8,085.02 and 3,426.74 is: 5,141.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.88 : 8,085.02 = 3,426.74 : x
  2. Step 2: Convert to fraction form
    5,388.88/8,085.02 = 3,426.74/x
  3. Step 3: Cross multiply
    5,388.88x = 8,085.02 × 3,426.74
  4. Step 4: Simplify right side
    5,388.88x = 27,705,264.51
  5. Step 5: Solve for x
    x = 27,705,264.51/5,388.88
  6. Step 6: Final answer
    x = 5,141.19

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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.