Home / 1,709.01-2,561.70-1,220.58

Finding the Fourth Proportional to 1,709.01, 2,561.70 and 1,220.58

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Solution

The fourth proportional to 1,709.01, 2,561.70 and 1,220.58 is: 1,829.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709.01 : 2,561.70 = 1,220.58 : x
  2. Step 2: Convert to fraction form
    1,709.01/2,561.70 = 1,220.58/x
  3. Step 3: Cross multiply
    1,709.01x = 2,561.70 × 1,220.58
  4. Step 4: Simplify right side
    1,709.01x = 3,126,759.79
  5. Step 5: Solve for x
    x = 3,126,759.79/1,709.01
  6. Step 6: Final answer
    x = 1,829.57

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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.