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Finding the Fourth Proportional to 1,143.44, 1,576.98 and 701.18

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Solution

The fourth proportional to 1,143.44, 1,576.98 and 701.18 is: 967.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143.44 : 1,576.98 = 701.18 : x
  2. Step 2: Convert to fraction form
    1,143.44/1,576.98 = 701.18/x
  3. Step 3: Cross multiply
    1,143.44x = 1,576.98 × 701.18
  4. Step 4: Simplify right side
    1,143.44x = 1,105,746.84
  5. Step 5: Solve for x
    x = 1,105,746.84/1,143.44
  6. Step 6: Final answer
    x = 967.04

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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.