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Finding the Fourth Proportional to 8,640.84, 12,961.08 and 2,484.84

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Solution

The fourth proportional to 8,640.84, 12,961.08 and 2,484.84 is: 3,727.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640.84 : 12,961.08 = 2,484.84 : x
  2. Step 2: Convert to fraction form
    8,640.84/12,961.08 = 2,484.84/x
  3. Step 3: Cross multiply
    8,640.84x = 12,961.08 × 2,484.84
  4. Step 4: Simplify right side
    8,640.84x = 32,206,210.03
  5. Step 5: Solve for x
    x = 32,206,210.03/8,640.84
  6. Step 6: Final answer
    x = 3,727.21

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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.