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Finding the Fourth Proportional to 6,121.32, 8,437.86 and 5,124.84

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Solution

The fourth proportional to 6,121.32, 8,437.86 and 5,124.84 is: 7,064.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.32 : 8,437.86 = 5,124.84 : x
  2. Step 2: Convert to fraction form
    6,121.32/8,437.86 = 5,124.84/x
  3. Step 3: Cross multiply
    6,121.32x = 8,437.86 × 5,124.84
  4. Step 4: Simplify right side
    6,121.32x = 43,242,682.44
  5. Step 5: Solve for x
    x = 43,242,682.44/6,121.32
  6. Step 6: Final answer
    x = 7,064.27

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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.