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Finding the Fourth Proportional to 1,001.58, 1,382.38 and 670.12

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Solution

The fourth proportional to 1,001.58, 1,382.38 and 670.12 is: 924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001.58 : 1,382.38 = 670.12 : x
  2. Step 2: Convert to fraction form
    1,001.58/1,382.38 = 670.12/x
  3. Step 3: Cross multiply
    1,001.58x = 1,382.38 × 670.12
  4. Step 4: Simplify right side
    1,001.58x = 926,360.49
  5. Step 5: Solve for x
    x = 926,360.49/1,001.58
  6. Step 6: Final answer
    x = 924.90

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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.