Home / 1,763.62-2,433.65-977.65

Finding the Fourth Proportional to 1,763.62, 2,433.65 and 977.65

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Solution

The fourth proportional to 1,763.62, 2,433.65 and 977.65 is: 1,349.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,763.62 : 2,433.65 = 977.65 : x
  2. Step 2: Convert to fraction form
    1,763.62/2,433.65 = 977.65/x
  3. Step 3: Cross multiply
    1,763.62x = 2,433.65 × 977.65
  4. Step 4: Simplify right side
    1,763.62x = 2,379,246.95
  5. Step 5: Solve for x
    x = 2,379,246.95/1,763.62
  6. Step 6: Final answer
    x = 1,349.07

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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.