Home / 4,438.31-6,657.42-1,318.34

Finding the Fourth Proportional to 4,438.31, 6,657.42 and 1,318.34

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Solution

The fourth proportional to 4,438.31, 6,657.42 and 1,318.34 is: 1,977.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,438.31 : 6,657.42 = 1,318.34 : x
  2. Step 2: Convert to fraction form
    4,438.31/6,657.42 = 1,318.34/x
  3. Step 3: Cross multiply
    4,438.31x = 6,657.42 × 1,318.34
  4. Step 4: Simplify right side
    4,438.31x = 8,776,759.73
  5. Step 5: Solve for x
    x = 8,776,759.73/4,438.31
  6. Step 6: Final answer
    x = 1,977.50

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Half scale
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Double scale
Find fourth proportional to 4,439.31, 6,658.92 and 1,319.34
Similar ratio
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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.