Home / 2,631.58-3,946.86-1,538.08

Finding the Fourth Proportional to 2,631.58, 3,946.86 and 1,538.08

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Solution

The fourth proportional to 2,631.58, 3,946.86 and 1,538.08 is: 2,306.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.58 : 3,946.86 = 1,538.08 : x
  2. Step 2: Convert to fraction form
    2,631.58/3,946.86 = 1,538.08/x
  3. Step 3: Cross multiply
    2,631.58x = 3,946.86 × 1,538.08
  4. Step 4: Simplify right side
    2,631.58x = 6,070,586.43
  5. Step 5: Solve for x
    x = 6,070,586.43/2,631.58
  6. Step 6: Final answer
    x = 2,306.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.