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Finding the Fourth Proportional to 5,582.88, 8,379.81 and 4,254.30

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Solution

The fourth proportional to 5,582.88, 8,379.81 and 4,254.30 is: 6,385.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,582.88 : 8,379.81 = 4,254.30 : x
  2. Step 2: Convert to fraction form
    5,582.88/8,379.81 = 4,254.30/x
  3. Step 3: Cross multiply
    5,582.88x = 8,379.81 × 4,254.30
  4. Step 4: Simplify right side
    5,582.88x = 35,650,225.68
  5. Step 5: Solve for x
    x = 35,650,225.68/5,582.88
  6. Step 6: Final answer
    x = 6,385.63

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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.