Home / 7,630.40-11,438.57-2,631.58

Finding the Fourth Proportional to 7,630.40, 11,438.57 and 2,631.58

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Solution

The fourth proportional to 7,630.40, 11,438.57 and 2,631.58 is: 3,944.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,630.40 : 11,438.57 = 2,631.58 : x
  2. Step 2: Convert to fraction form
    7,630.40/11,438.57 = 2,631.58/x
  3. Step 3: Cross multiply
    7,630.40x = 11,438.57 × 2,631.58
  4. Step 4: Simplify right side
    7,630.40x = 30,101,490.02
  5. Step 5: Solve for x
    x = 30,101,490.02/7,630.40
  6. Step 6: Final answer
    x = 3,944.94

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1.5x scale

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.