Home / 6,455.88-8,909.18-4,216.44

Finding the Fourth Proportional to 6,455.88, 8,909.18 and 4,216.44

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Solution

The fourth proportional to 6,455.88, 8,909.18 and 4,216.44 is: 5,818.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,455.88 : 8,909.18 = 4,216.44 : x
  2. Step 2: Convert to fraction form
    6,455.88/8,909.18 = 4,216.44/x
  3. Step 3: Cross multiply
    6,455.88x = 8,909.18 × 4,216.44
  4. Step 4: Simplify right side
    6,455.88x = 37,565,001.84
  5. Step 5: Solve for x
    x = 37,565,001.84/6,455.88
  6. Step 6: Final answer
    x = 5,818.73

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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.