Home / 6,319.30-8,721.42-3,631.35

Finding the Fourth Proportional to 6,319.30, 8,721.42 and 3,631.35

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Solution

The fourth proportional to 6,319.30, 8,721.42 and 3,631.35 is: 5,011.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,319.30 : 8,721.42 = 3,631.35 : x
  2. Step 2: Convert to fraction form
    6,319.30/8,721.42 = 3,631.35/x
  3. Step 3: Cross multiply
    6,319.30x = 8,721.42 × 3,631.35
  4. Step 4: Simplify right side
    6,319.30x = 31,670,528.52
  5. Step 5: Solve for x
    x = 31,670,528.52/6,319.30
  6. Step 6: Final answer
    x = 5,011.71

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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.