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Finding the Fourth Proportional to 3,311.06, 4,965.66 and 971.58

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Solution

The fourth proportional to 3,311.06, 4,965.66 and 971.58 is: 1,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.06 : 4,965.66 = 971.58 : x
  2. Step 2: Convert to fraction form
    3,311.06/4,965.66 = 971.58/x
  3. Step 3: Cross multiply
    3,311.06x = 4,965.66 × 971.58
  4. Step 4: Simplify right side
    3,311.06x = 4,824,535.94
  5. Step 5: Solve for x
    x = 4,824,535.94/3,311.06
  6. Step 6: Final answer
    x = 1,457.10

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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.