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Finding the Fourth Proportional to 1,144.02, 1,576.08 and 946.92

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Solution

The fourth proportional to 1,144.02, 1,576.08 and 946.92 is: 1,304.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.02 : 1,576.08 = 946.92 : x
  2. Step 2: Convert to fraction form
    1,144.02/1,576.08 = 946.92/x
  3. Step 3: Cross multiply
    1,144.02x = 1,576.08 × 946.92
  4. Step 4: Simplify right side
    1,144.02x = 1,492,421.67
  5. Step 5: Solve for x
    x = 1,492,421.67/1,144.02
  6. Step 6: Final answer
    x = 1,304.54

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Half scale
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Double scale
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1.5x scale

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.