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Finding the Fourth Proportional to 5,805.48, 8,708.05 and 1,422.84

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Solution

The fourth proportional to 5,805.48, 8,708.05 and 1,422.84 is: 2,134.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,805.48 : 8,708.05 = 1,422.84 : x
  2. Step 2: Convert to fraction form
    5,805.48/8,708.05 = 1,422.84/x
  3. Step 3: Cross multiply
    5,805.48x = 8,708.05 × 1,422.84
  4. Step 4: Simplify right side
    5,805.48x = 12,390,161.86
  5. Step 5: Solve for x
    x = 12,390,161.86/5,805.48
  6. Step 6: Final answer
    x = 2,134.22

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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.