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Finding the Fourth Proportional to 670.91, 923.27 and 651.87

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Solution

The fourth proportional to 670.91, 923.27 and 651.87 is: 897.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.91 : 923.27 = 651.87 : x
  2. Step 2: Convert to fraction form
    670.91/923.27 = 651.87/x
  3. Step 3: Cross multiply
    670.91x = 923.27 × 651.87
  4. Step 4: Simplify right side
    670.91x = 601,848.76
  5. Step 5: Solve for x
    x = 601,848.76/670.91
  6. Step 6: Final answer
    x = 897.07

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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.