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Finding the Fourth Proportional to 941.19, 1,299.00 and 899.66

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Solution

The fourth proportional to 941.19, 1,299.00 and 899.66 is: 1,241.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.19 : 1,299.00 = 899.66 : x
  2. Step 2: Convert to fraction form
    941.19/1,299.00 = 899.66/x
  3. Step 3: Cross multiply
    941.19x = 1,299.00 × 899.66
  4. Step 4: Simplify right side
    941.19x = 1,168,653.84
  5. Step 5: Solve for x
    x = 1,168,653.84/941.19
  6. Step 6: Final answer
    x = 1,241.68

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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.