Home / 1,709.32-2,561.43-1,403.32

Finding the Fourth Proportional to 1,709.32, 2,561.43 and 1,403.32

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Solution

The fourth proportional to 1,709.32, 2,561.43 and 1,403.32 is: 2,102.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709.32 : 2,561.43 = 1,403.32 : x
  2. Step 2: Convert to fraction form
    1,709.32/2,561.43 = 1,403.32/x
  3. Step 3: Cross multiply
    1,709.32x = 2,561.43 × 1,403.32
  4. Step 4: Simplify right side
    1,709.32x = 3,594,505.95
  5. Step 5: Solve for x
    x = 3,594,505.95/1,709.32
  6. Step 6: Final answer
    x = 2,102.89

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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.