Home / 1,029.67-1,421.75-675.83

Finding the Fourth Proportional to 1,029.67, 1,421.75 and 675.83

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Solution

The fourth proportional to 1,029.67, 1,421.75 and 675.83 is: 933.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029.67 : 1,421.75 = 675.83 : x
  2. Step 2: Convert to fraction form
    1,029.67/1,421.75 = 675.83/x
  3. Step 3: Cross multiply
    1,029.67x = 1,421.75 × 675.83
  4. Step 4: Simplify right side
    1,029.67x = 960,861.30
  5. Step 5: Solve for x
    x = 960,861.30/1,029.67
  6. Step 6: Final answer
    x = 933.17

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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.