Home / 6,438.90-9,658.35-2,976.15

Finding the Fourth Proportional to 6,438.90, 9,658.35 and 2,976.15

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Solution

The fourth proportional to 6,438.90, 9,658.35 and 2,976.15 is: 4,464.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438.90 : 9,658.35 = 2,976.15 : x
  2. Step 2: Convert to fraction form
    6,438.90/9,658.35 = 2,976.15/x
  3. Step 3: Cross multiply
    6,438.90x = 9,658.35 × 2,976.15
  4. Step 4: Simplify right side
    6,438.90x = 28,744,698.35
  5. Step 5: Solve for x
    x = 28,744,698.35/6,438.90
  6. Step 6: Final answer
    x = 4,464.23

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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.