Home / 1,488.36-2,052.72-1,068.78

Finding the Fourth Proportional to 1,488.36, 2,052.72 and 1,068.78

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Solution

The fourth proportional to 1,488.36, 2,052.72 and 1,068.78 is: 1,474.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488.36 : 2,052.72 = 1,068.78 : x
  2. Step 2: Convert to fraction form
    1,488.36/2,052.72 = 1,068.78/x
  3. Step 3: Cross multiply
    1,488.36x = 2,052.72 × 1,068.78
  4. Step 4: Simplify right side
    1,488.36x = 2,193,906.08
  5. Step 5: Solve for x
    x = 2,193,906.08/1,488.36
  6. Step 6: Final answer
    x = 1,474.04

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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.