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Finding the Fourth Proportional to 1,341.50, 1,850.64 and 948.74

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Solution

The fourth proportional to 1,341.50, 1,850.64 and 948.74 is: 1,308.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.50 : 1,850.64 = 948.74 : x
  2. Step 2: Convert to fraction form
    1,341.50/1,850.64 = 948.74/x
  3. Step 3: Cross multiply
    1,341.50x = 1,850.64 × 948.74
  4. Step 4: Simplify right side
    1,341.50x = 1,755,776.19
  5. Step 5: Solve for x
    x = 1,755,776.19/1,341.50
  6. Step 6: Final answer
    x = 1,308.82

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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.