Home / 1,939.85-2,905.74-1,610.01

Finding the Fourth Proportional to 1,939.85, 2,905.74 and 1,610.01

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Solution

The fourth proportional to 1,939.85, 2,905.74 and 1,610.01 is: 2,411.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.85 : 2,905.74 = 1,610.01 : x
  2. Step 2: Convert to fraction form
    1,939.85/2,905.74 = 1,610.01/x
  3. Step 3: Cross multiply
    1,939.85x = 2,905.74 × 1,610.01
  4. Step 4: Simplify right side
    1,939.85x = 4,678,270.46
  5. Step 5: Solve for x
    x = 4,678,270.46/1,939.85
  6. Step 6: Final answer
    x = 2,411.67

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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.