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Finding the Fourth Proportional to 6,339.74, 8,752.35 and 5,078.30

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Solution

The fourth proportional to 6,339.74, 8,752.35 and 5,078.30 is: 7,010.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,339.74 : 8,752.35 = 5,078.30 : x
  2. Step 2: Convert to fraction form
    6,339.74/8,752.35 = 5,078.30/x
  3. Step 3: Cross multiply
    6,339.74x = 8,752.35 × 5,078.30
  4. Step 4: Simplify right side
    6,339.74x = 44,447,059.01
  5. Step 5: Solve for x
    x = 44,447,059.01/6,339.74
  6. Step 6: Final answer
    x = 7,010.86

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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.