Home / 1,680.53-2,319.01-934.49

Finding the Fourth Proportional to 1,680.53, 2,319.01 and 934.49

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Solution

The fourth proportional to 1,680.53, 2,319.01 and 934.49 is: 1,289.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680.53 : 2,319.01 = 934.49 : x
  2. Step 2: Convert to fraction form
    1,680.53/2,319.01 = 934.49/x
  3. Step 3: Cross multiply
    1,680.53x = 2,319.01 × 934.49
  4. Step 4: Simplify right side
    1,680.53x = 2,167,091.65
  5. Step 5: Solve for x
    x = 2,167,091.65/1,680.53
  6. Step 6: Final answer
    x = 1,289.53

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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.