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Finding the Fourth Proportional to 972.37, 1,342.08 and 579.62

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Solution

The fourth proportional to 972.37, 1,342.08 and 579.62 is: 800.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    972.37 : 1,342.08 = 579.62 : x
  2. Step 2: Convert to fraction form
    972.37/1,342.08 = 579.62/x
  3. Step 3: Cross multiply
    972.37x = 1,342.08 × 579.62
  4. Step 4: Simplify right side
    972.37x = 777,896.41
  5. Step 5: Solve for x
    x = 777,896.41/972.37
  6. Step 6: Final answer
    x = 800.00

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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.