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Finding the Fourth Proportional to 1,677.66, 2,314.68 and 969.32

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Solution

The fourth proportional to 1,677.66, 2,314.68 and 969.32 is: 1,337.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677.66 : 2,314.68 = 969.32 : x
  2. Step 2: Convert to fraction form
    1,677.66/2,314.68 = 969.32/x
  3. Step 3: Cross multiply
    1,677.66x = 2,314.68 × 969.32
  4. Step 4: Simplify right side
    1,677.66x = 2,243,654.04
  5. Step 5: Solve for x
    x = 2,243,654.04/1,677.66
  6. Step 6: Final answer
    x = 1,337.37

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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.