Home / 1,709.07-2,562.12-669.93

Finding the Fourth Proportional to 1,709.07, 2,562.12 and 669.93

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Solution

The fourth proportional to 1,709.07, 2,562.12 and 669.93 is: 1,004.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709.07 : 2,562.12 = 669.93 : x
  2. Step 2: Convert to fraction form
    1,709.07/2,562.12 = 669.93/x
  3. Step 3: Cross multiply
    1,709.07x = 2,562.12 × 669.93
  4. Step 4: Simplify right side
    1,709.07x = 1,716,441.05
  5. Step 5: Solve for x
    x = 1,716,441.05/1,709.07
  6. Step 6: Final answer
    x = 1,004.31

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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.