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Finding the Fourth Proportional to 3,281.52, 4,896.89 and 2,931.09

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Solution

The fourth proportional to 3,281.52, 4,896.89 and 2,931.09 is: 4,373.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.52 : 4,896.89 = 2,931.09 : x
  2. Step 2: Convert to fraction form
    3,281.52/4,896.89 = 2,931.09/x
  3. Step 3: Cross multiply
    3,281.52x = 4,896.89 × 2,931.09
  4. Step 4: Simplify right side
    3,281.52x = 14,353,210.65
  5. Step 5: Solve for x
    x = 14,353,210.65/3,281.52
  6. Step 6: Final answer
    x = 4,373.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.