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Finding the Fourth Proportional to 895.36, 1,234.75 and 674.23

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Solution

The fourth proportional to 895.36, 1,234.75 and 674.23 is: 929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.36 : 1,234.75 = 674.23 : x
  2. Step 2: Convert to fraction form
    895.36/1,234.75 = 674.23/x
  3. Step 3: Cross multiply
    895.36x = 1,234.75 × 674.23
  4. Step 4: Simplify right side
    895.36x = 832,505.49
  5. Step 5: Solve for x
    x = 832,505.49/895.36
  6. Step 6: Final answer
    x = 929.80

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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.