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Finding the Fourth Proportional to 3,180.03, 4,768.80 and 958.18

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Solution

The fourth proportional to 3,180.03, 4,768.80 and 958.18 is: 1,436.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.03 : 4,768.80 = 958.18 : x
  2. Step 2: Convert to fraction form
    3,180.03/4,768.80 = 958.18/x
  3. Step 3: Cross multiply
    3,180.03x = 4,768.80 × 958.18
  4. Step 4: Simplify right side
    3,180.03x = 4,569,364.91
  5. Step 5: Solve for x
    x = 4,569,364.91/3,180.03
  6. Step 6: Final answer
    x = 1,436.89

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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.