Home / 1,631.52-2,248.08-1,106.64

Finding the Fourth Proportional to 1,631.52, 2,248.08 and 1,106.64

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Solution

The fourth proportional to 1,631.52, 2,248.08 and 1,106.64 is: 1,524.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.52 : 2,248.08 = 1,106.64 : x
  2. Step 2: Convert to fraction form
    1,631.52/2,248.08 = 1,106.64/x
  3. Step 3: Cross multiply
    1,631.52x = 2,248.08 × 1,106.64
  4. Step 4: Simplify right side
    1,631.52x = 2,487,815.25
  5. Step 5: Solve for x
    x = 2,487,815.25/1,631.52
  6. Step 6: Final answer
    x = 1,524.85

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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.