Home / 1,127.23-1,690.67-433.94

Finding the Fourth Proportional to 1,127.23, 1,690.67 and 433.94

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Solution

The fourth proportional to 1,127.23, 1,690.67 and 433.94 is: 650.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127.23 : 1,690.67 = 433.94 : x
  2. Step 2: Convert to fraction form
    1,127.23/1,690.67 = 433.94/x
  3. Step 3: Cross multiply
    1,127.23x = 1,690.67 × 433.94
  4. Step 4: Simplify right side
    1,127.23x = 733,641.97
  5. Step 5: Solve for x
    x = 733,641.97/1,127.23
  6. Step 6: Final answer
    x = 650.84

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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.