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Finding the Fourth Proportional to 2,286.65, 3,430.08 and 970.99

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Solution

The fourth proportional to 2,286.65, 3,430.08 and 970.99 is: 1,456.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.65 : 3,430.08 = 970.99 : x
  2. Step 2: Convert to fraction form
    2,286.65/3,430.08 = 970.99/x
  3. Step 3: Cross multiply
    2,286.65x = 3,430.08 × 970.99
  4. Step 4: Simplify right side
    2,286.65x = 3,330,564.80
  5. Step 5: Solve for x
    x = 3,330,564.80/2,286.65
  6. Step 6: Final answer
    x = 1,456.52

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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.