Home / 6,979.28-9,631.53-3,835.44

Finding the Fourth Proportional to 6,979.28, 9,631.53 and 3,835.44

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Solution

The fourth proportional to 6,979.28, 9,631.53 and 3,835.44 is: 5,292.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.28 : 9,631.53 = 3,835.44 : x
  2. Step 2: Convert to fraction form
    6,979.28/9,631.53 = 3,835.44/x
  3. Step 3: Cross multiply
    6,979.28x = 9,631.53 × 3,835.44
  4. Step 4: Simplify right side
    6,979.28x = 36,941,155.42
  5. Step 5: Solve for x
    x = 36,941,155.42/6,979.28
  6. Step 6: Final answer
    x = 5,292.98

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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.