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Finding the Fourth Proportional to 944.76, 1,302.36 and 664.08

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Solution

The fourth proportional to 944.76, 1,302.36 and 664.08 is: 915.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.76 : 1,302.36 = 664.08 : x
  2. Step 2: Convert to fraction form
    944.76/1,302.36 = 664.08/x
  3. Step 3: Cross multiply
    944.76x = 1,302.36 × 664.08
  4. Step 4: Simplify right side
    944.76x = 864,871.23
  5. Step 5: Solve for x
    x = 864,871.23/944.76
  6. Step 6: Final answer
    x = 915.44

Related Problems

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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.