Home / 2,631.44-3,631.14-1,685.55

Finding the Fourth Proportional to 2,631.44, 3,631.14 and 1,685.55

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Solution

The fourth proportional to 2,631.44, 3,631.14 and 1,685.55 is: 2,325.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.44 : 3,631.14 = 1,685.55 : x
  2. Step 2: Convert to fraction form
    2,631.44/3,631.14 = 1,685.55/x
  3. Step 3: Cross multiply
    2,631.44x = 3,631.14 × 1,685.55
  4. Step 4: Simplify right side
    2,631.44x = 6,120,468.03
  5. Step 5: Solve for x
    x = 6,120,468.03/2,631.44
  6. Step 6: Final answer
    x = 2,325.91

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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.