Home / 2,281.34-3,148.28-1,286.64

Finding the Fourth Proportional to 2,281.34, 3,148.28 and 1,286.64

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Solution

The fourth proportional to 2,281.34, 3,148.28 and 1,286.64 is: 1,775.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.34 : 3,148.28 = 1,286.64 : x
  2. Step 2: Convert to fraction form
    2,281.34/3,148.28 = 1,286.64/x
  3. Step 3: Cross multiply
    2,281.34x = 3,148.28 × 1,286.64
  4. Step 4: Simplify right side
    2,281.34x = 4,050,702.98
  5. Step 5: Solve for x
    x = 4,050,702.98/2,281.34
  6. Step 6: Final answer
    x = 1,775.58

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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.