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Finding the Fourth Proportional to 6,749.04, 9,310.50 and 4,390.32

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Solution

The fourth proportional to 6,749.04, 9,310.50 and 4,390.32 is: 6,056.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,749.04 : 9,310.50 = 4,390.32 : x
  2. Step 2: Convert to fraction form
    6,749.04/9,310.50 = 4,390.32/x
  3. Step 3: Cross multiply
    6,749.04x = 9,310.50 × 4,390.32
  4. Step 4: Simplify right side
    6,749.04x = 40,876,074.36
  5. Step 5: Solve for x
    x = 40,876,074.36/6,749.04
  6. Step 6: Final answer
    x = 6,056.58

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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.