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Finding the Fourth Proportional to 1,196.76, 1,652.10 and 902.14

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Solution

The fourth proportional to 1,196.76, 1,652.10 and 902.14 is: 1,245.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196.76 : 1,652.10 = 902.14 : x
  2. Step 2: Convert to fraction form
    1,196.76/1,652.10 = 902.14/x
  3. Step 3: Cross multiply
    1,196.76x = 1,652.10 × 902.14
  4. Step 4: Simplify right side
    1,196.76x = 1,490,425.49
  5. Step 5: Solve for x
    x = 1,490,425.49/1,196.76
  6. Step 6: Final answer
    x = 1,245.38

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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.