Home / 6,905.20-9,523.60-4,247.92

Finding the Fourth Proportional to 6,905.20, 9,523.60 and 4,247.92

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Solution

The fourth proportional to 6,905.20, 9,523.60 and 4,247.92 is: 5,858.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.20 : 9,523.60 = 4,247.92 : x
  2. Step 2: Convert to fraction form
    6,905.20/9,523.60 = 4,247.92/x
  3. Step 3: Cross multiply
    6,905.20x = 9,523.60 × 4,247.92
  4. Step 4: Simplify right side
    6,905.20x = 40,455,490.91
  5. Step 5: Solve for x
    x = 40,455,490.91/6,905.20
  6. Step 6: Final answer
    x = 5,858.70

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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.