Home / 1,900.45-2,850.64-1,575.13

Finding the Fourth Proportional to 1,900.45, 2,850.64 and 1,575.13

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Solution

The fourth proportional to 1,900.45, 2,850.64 and 1,575.13 is: 2,362.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,900.45 : 2,850.64 = 1,575.13 : x
  2. Step 2: Convert to fraction form
    1,900.45/2,850.64 = 1,575.13/x
  3. Step 3: Cross multiply
    1,900.45x = 2,850.64 × 1,575.13
  4. Step 4: Simplify right side
    1,900.45x = 4,490,128.58
  5. Step 5: Solve for x
    x = 4,490,128.58/1,900.45
  6. Step 6: Final answer
    x = 2,362.67

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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.