Home / 1,675.09-2,311.73-929.08

Finding the Fourth Proportional to 1,675.09, 2,311.73 and 929.08

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Solution

The fourth proportional to 1,675.09, 2,311.73 and 929.08 is: 1,282.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.09 : 2,311.73 = 929.08 : x
  2. Step 2: Convert to fraction form
    1,675.09/2,311.73 = 929.08/x
  3. Step 3: Cross multiply
    1,675.09x = 2,311.73 × 929.08
  4. Step 4: Simplify right side
    1,675.09x = 2,147,782.11
  5. Step 5: Solve for x
    x = 2,147,782.11/1,675.09
  6. Step 6: Final answer
    x = 1,282.19

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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.