Home / 1,912.50-2,644.45-1,666.46

Finding the Fourth Proportional to 1,912.50, 2,644.45 and 1,666.46

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Solution

The fourth proportional to 1,912.50, 2,644.45 and 1,666.46 is: 2,304.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912.50 : 2,644.45 = 1,666.46 : x
  2. Step 2: Convert to fraction form
    1,912.50/2,644.45 = 1,666.46/x
  3. Step 3: Cross multiply
    1,912.50x = 2,644.45 × 1,666.46
  4. Step 4: Simplify right side
    1,912.50x = 4,406,861.81
  5. Step 5: Solve for x
    x = 4,406,861.81/1,912.50
  6. Step 6: Final answer
    x = 2,304.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.