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Finding the Fourth Proportional to 1,971.49, 2,957.25 and 565.91

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Solution

The fourth proportional to 1,971.49, 2,957.25 and 565.91 is: 848.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.49 : 2,957.25 = 565.91 : x
  2. Step 2: Convert to fraction form
    1,971.49/2,957.25 = 565.91/x
  3. Step 3: Cross multiply
    1,971.49x = 2,957.25 × 565.91
  4. Step 4: Simplify right side
    1,971.49x = 1,673,537.35
  5. Step 5: Solve for x
    x = 1,673,537.35/1,971.49
  6. Step 6: Final answer
    x = 848.87

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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.