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Finding the Fourth Proportional to 1,670.01, 2,505.02 and 437.42

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Solution

The fourth proportional to 1,670.01, 2,505.02 and 437.42 is: 656.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670.01 : 2,505.02 = 437.42 : x
  2. Step 2: Convert to fraction form
    1,670.01/2,505.02 = 437.42/x
  3. Step 3: Cross multiply
    1,670.01x = 2,505.02 × 437.42
  4. Step 4: Simplify right side
    1,670.01x = 1,095,731.14
  5. Step 5: Solve for x
    x = 1,095,731.14/1,670.01
  6. Step 6: Final answer
    x = 656.12

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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.