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Finding the Fourth Proportional to 2,330.30, 3,496.86 and 870.68

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Solution

The fourth proportional to 2,330.30, 3,496.86 and 870.68 is: 1,306.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,330.30 : 3,496.86 = 870.68 : x
  2. Step 2: Convert to fraction form
    2,330.30/3,496.86 = 870.68/x
  3. Step 3: Cross multiply
    2,330.30x = 3,496.86 × 870.68
  4. Step 4: Simplify right side
    2,330.30x = 3,044,628.58
  5. Step 5: Solve for x
    x = 3,044,628.58/2,330.30
  6. Step 6: Final answer
    x = 1,306.54

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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.