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Finding the Fourth Proportional to 1,670.81, 2,504.48 and 630.07

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Solution

The fourth proportional to 1,670.81, 2,504.48 and 630.07 is: 944.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670.81 : 2,504.48 = 630.07 : x
  2. Step 2: Convert to fraction form
    1,670.81/2,504.48 = 630.07/x
  3. Step 3: Cross multiply
    1,670.81x = 2,504.48 × 630.07
  4. Step 4: Simplify right side
    1,670.81x = 1,577,988.30
  5. Step 5: Solve for x
    x = 1,577,988.30/1,670.81
  6. Step 6: Final answer
    x = 944.45

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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.