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Finding the Fourth Proportional to 1,333.40, 1,832.08 and 1,248.08

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Solution

The fourth proportional to 1,333.40, 1,832.08 and 1,248.08 is: 1,714.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333.40 : 1,832.08 = 1,248.08 : x
  2. Step 2: Convert to fraction form
    1,333.40/1,832.08 = 1,248.08/x
  3. Step 3: Cross multiply
    1,333.40x = 1,832.08 × 1,248.08
  4. Step 4: Simplify right side
    1,333.40x = 2,286,582.41
  5. Step 5: Solve for x
    x = 2,286,582.41/1,333.40
  6. Step 6: Final answer
    x = 1,714.85

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.