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Finding the Fourth Proportional to 6,697.58, 9,240.80 and 4,007.68

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Solution

The fourth proportional to 6,697.58, 9,240.80 and 4,007.68 is: 5,529.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,697.58 : 9,240.80 = 4,007.68 : x
  2. Step 2: Convert to fraction form
    6,697.58/9,240.80 = 4,007.68/x
  3. Step 3: Cross multiply
    6,697.58x = 9,240.80 × 4,007.68
  4. Step 4: Simplify right side
    6,697.58x = 37,034,169.34
  5. Step 5: Solve for x
    x = 37,034,169.34/6,697.58
  6. Step 6: Final answer
    x = 5,529.49

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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.