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Finding the Fourth Proportional to 4,999.38, 7,499.10 and 1,712.50

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Solution

The fourth proportional to 4,999.38, 7,499.10 and 1,712.50 is: 2,568.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,999.38 : 7,499.10 = 1,712.50 : x
  2. Step 2: Convert to fraction form
    4,999.38/7,499.10 = 1,712.50/x
  3. Step 3: Cross multiply
    4,999.38x = 7,499.10 × 1,712.50
  4. Step 4: Simplify right side
    4,999.38x = 12,842,208.75
  5. Step 5: Solve for x
    x = 12,842,208.75/4,999.38
  6. Step 6: Final answer
    x = 2,568.76

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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.