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Finding the Fourth Proportional to 3,003.79, 4,507.30 and 1,250

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Solution

The fourth proportional to 3,003.79, 4,507.30 and 1,250 is: 1,875.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,003.79 : 4,507.30 = 1,250 : x
  2. Step 2: Convert to fraction form
    3,003.79/4,507.30 = 1,250/x
  3. Step 3: Cross multiply
    3,003.79x = 4,507.30 × 1,250
  4. Step 4: Simplify right side
    3,003.79x = 5,634,118.75
  5. Step 5: Solve for x
    x = 5,634,118.75/3,003.79
  6. Step 6: Final answer
    x = 1,875.67

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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.