Home / 6,631.61-9,948.52-2,190.31

Finding the Fourth Proportional to 6,631.61, 9,948.52 and 2,190.31

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Solution

The fourth proportional to 6,631.61, 9,948.52 and 2,190.31 is: 3,285.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.61 : 9,948.52 = 2,190.31 : x
  2. Step 2: Convert to fraction form
    6,631.61/9,948.52 = 2,190.31/x
  3. Step 3: Cross multiply
    6,631.61x = 9,948.52 × 2,190.31
  4. Step 4: Simplify right side
    6,631.61x = 21,790,320.71
  5. Step 5: Solve for x
    x = 21,790,320.71/6,631.61
  6. Step 6: Final answer
    x = 3,285.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.