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Finding the Fourth Proportional to 4,750.79, 7,129.83 and 4,506.89

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Solution

The fourth proportional to 4,750.79, 7,129.83 and 4,506.89 is: 6,763.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750.79 : 7,129.83 = 4,506.89 : x
  2. Step 2: Convert to fraction form
    4,750.79/7,129.83 = 4,506.89/x
  3. Step 3: Cross multiply
    4,750.79x = 7,129.83 × 4,506.89
  4. Step 4: Simplify right side
    4,750.79x = 32,133,323.88
  5. Step 5: Solve for x
    x = 32,133,323.88/4,750.79
  6. Step 6: Final answer
    x = 6,763.79

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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.