Home / 1,675.30-2,311.93-929.33

Finding the Fourth Proportional to 1,675.30, 2,311.93 and 929.33

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Solution

The fourth proportional to 1,675.30, 2,311.93 and 929.33 is: 1,282.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.30 : 2,311.93 = 929.33 : x
  2. Step 2: Convert to fraction form
    1,675.30/2,311.93 = 929.33/x
  3. Step 3: Cross multiply
    1,675.30x = 2,311.93 × 929.33
  4. Step 4: Simplify right side
    1,675.30x = 2,148,549.37
  5. Step 5: Solve for x
    x = 2,148,549.37/1,675.30
  6. Step 6: Final answer
    x = 1,282.49

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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.