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Finding the Fourth Proportional to 3,484.66, 5,226.99 and 887.62

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Solution

The fourth proportional to 3,484.66, 5,226.99 and 887.62 is: 1,331.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,484.66 : 5,226.99 = 887.62 : x
  2. Step 2: Convert to fraction form
    3,484.66/5,226.99 = 887.62/x
  3. Step 3: Cross multiply
    3,484.66x = 5,226.99 × 887.62
  4. Step 4: Simplify right side
    3,484.66x = 4,639,580.86
  5. Step 5: Solve for x
    x = 4,639,580.86/3,484.66
  6. Step 6: Final answer
    x = 1,331.43

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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.